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Posted: 12/28/2008 7:49:09 PM EST
Not to go all tinfoil here, but I found the recent activity interesting considering the area.  

http://www.seis.utah.edu/req2webdir/recenteqs/Maps/Yellowstone.html



MAP 2.5  2008/12/29 05:30:04 44.507 -110.371 0.8 61 km ( 38 mi) ESE of West Yellowstone, MT
MAP 2.2  2008/12/29 05:23:37 44.511 -110.369 1.2 61 km ( 38 mi) ESE of West Yellowstone, MT
MAP 1.9  2008/12/29 04:29:18 44.522 -110.385 1.0 59 km ( 37 mi) ESE of West Yellowstone, MT
MAP 2.9  2008/12/29 04:25:54 44.504 -110.364 0.6 61 km ( 38 mi) ESE of West Yellowstone, MT
MAP 2.2  2008/12/28 23:57:57 44.509 -110.372 0.9 61 km ( 38 mi) ESE of West Yellowstone, MT
MAP 2.0  2008/12/28 23:08:25 44.491 -110.390 1.7 60 km ( 37 mi) ESE of West Yellowstone, MT
MAP 3.2  2008/12/28 19:55:17 44.499 -110.350 0.4 63 km ( 39 mi) ESE of West Yellowstone, MT
MAP 2.6  2008/12/28 19:32:15 44.511 -110.352 0.3 62 km ( 39 mi) ESE of West Yellowstone, MT
MAP 2.4  2008/12/28 15:37:41 44.523 -110.370 0.4 60 km ( 37 mi) ESE of West Yellowstone, MT
MAP 3.2  2008/12/28 09:23:57 44.505 -110.363 0.4 61 km ( 38 mi) ESE of West Yellowstone, MT
MAP 2.2  2008/12/28 07:15:19 44.487 -110.358 0.4 62 km ( 39 mi) ESE of West Yellowstone, MT
MAP 2.1  2008/12/28 06:37:20 44.491 -110.383 0.2 60 km ( 37 mi) ESE of West Yellowstone, MT
MAP 2.4  2008/12/28 05:23:54 44.490 -110.360 1.9 62 km ( 39 mi) ESE of West Yellowstone, MT
MAP 3.8  2008/12/28 05:15:56 44.492 -110.365 0.2 62 km ( 38 mi) ESE of West Yellowstone, MT
MAP 2.6  2008/12/28 00:08:50 44.493 -110.354 0.4 63 km ( 39 mi) ESE of West Yellowstone, MT
MAP 3.2  2008/12/27 22:30:03 44.495 -110.367 0.2 61 km ( 38 mi) ESE of West Yellowstone, MT
MAP 3.4  2008/12/27 20:26:27 44.488 -110.365 0.3 62 km ( 38 mi) ESE of West Yellowstone, MT
MAP 3.5  2008/12/27 20:17:32 44.481 -110.362 0.7 62 km ( 39 mi) ESE of West Yellowstone, MT
MAP 2.3  2008/12/27 18:56:35 44.484 -110.367 0.5 62 km ( 38 mi) ESE of West Yellowstone, MT
MAP 2.8  2008/12/27 18:23:07 44.490 -110.369 0.1 61 km ( 38 mi) ESE of West Yellowstone, MT
MAP 2.5  2008/12/27 17:01:07 44.484 -110.367 0.2 62 km ( 38 mi) ESE of West Yellowstone, MT
MAP 2.6  2008/12/27 16:30:53 44.497 -110.368 0.4 61 km ( 38 mi) ESE of West Yellowstone, MT

http://volcanoes.usgs.gov/yvo/

YELLOWSTONE VOLCANO OBSERVATORY INFORMATION RELEASE
Saturday, December 27, 2008 20:29 MST (Sunday, December 28, 2008 03:29 UTC)


YELLOWSTONE VOLCANO (CAVW#1205-01-)
44.43°N 110.67°W, Summit Elevation 9203 ft (2805 m)
Volcano Alert Level: NORMAL
Aviation Color Code: GREEN

PRESS RELEASE FROM YVO PARTNER UNIVERSITY OF UTAH SEISMOGRAPH STATIONS

Released: December 27, 2008 04:40 PM MST


The University of Utah Seismograph Stations reports that a swarm of small earthquakes of magnitude 3.5 and smaller is occurring beneath Yellowstone Lake in Yellowstone National Park, five to nine miles south-southeast of Fishing Bridge, Wyoming. The swarm began yesterday afternoon, Dec. 26, and has continued and intensified today. The two largest earthquakes in this swarm have been shocks of magnitude 3.5 and 3.4 which occurred at 1:17 and 1:26 pm MST, respectively, today. Many smaller earthquakes have also occurred, including three events this morning of magnitude 2.5 to 2.8 and a magnitude 3.2 event at 3:30 pm MST. Some of the earthquakes in the swarm have been reported felt by people in the Yellowstone Lake area. Swarms of this nature are relatively common in this part of Yellowstone Park.

Summary for Largest Earthquake:

Date (UTC): December 27, 2008 Time (UTC): 20:17

Date (local): December 27, 2008 Time (local): 01:17 PM MST

Latitude: 44 28.85' N

Longitude: 110 21.74' W

Magnitude: average Ml: 3.50
average Mc: 3.6

Reported magnitude: 3.50

For the next ten days, an image of today's recordings from the nearby LKWY seismograph station can be viewed at:
http://www.seis.utah.edu/helicorder/heli/yellowstone/Uuss.LKWY_SHZ_US.2008122700.gif
After ten days, the image will be replaced by more recent data.

––––-
The Yellowstone Volcano Observatory (YVO) is a partnership of the U.S. Geological Survey (USGS), Yellowstone National Park, and University of Utah to strengthen the long-term monitoring of volcanic and earthquake unrest in the Yellowstone National Park region. Yellowstone is the site of the largest and most diverse collection of natural thermal features in the world and the first National Park. YVO is one of the five USGS Volcano Observatories that monitor volcanoes within the United States for science and public safety.
Link Posted: 12/28/2008 8:08:25 PM EST
[#1]
What's "tinfoil" about seismic activity ?

Or do you just mean the disaster theory that Yellowstone will be an epicenter for an extinction level/cataclysmic  event ?


After touring Mt St. Helen's monument I believe if Mother Nature wants to fuck our shit up, she will.
Link Posted: 12/28/2008 8:12:56 PM EST
[#2]
Quoted:



The University of Utah Seismograph Stations reports that a swarm of small earthquakes of magnitude 3.5 and smaller is occurring beneath Yellowstone Lake in Yellowstone National Park, five to nine miles south-southeast of Fishing Bridge, Wyoming. The swarm began yesterday afternoon, Dec. 26, and has continued and intensified today. The two largest earthquakes in this swarm have been shocks of magnitude 3.5 and 3.4 which occurred at 1:17 and 1:26 pm MST, respectively, today. Many smaller earthquakes have also occurred, including three events this morning of magnitude 2.5 to 2.8 and a magnitude 3.2 event at 3:30 pm MST. Some of the earthquakes in the swarm have been reported felt by people in the Yellowstone Lake area. Swarms of this nature are relatively common in this part of Yellowstone Park.




This line jumped out at me. Out of context, sure 23 quakes is alarming. Not much more than a reminder that it's alive.
Link Posted: 12/28/2008 9:11:12 PM EST
[#3]
Quoted:
What's "tinfoil" about seismic activity ?

Or do you just mean the disaster theory that Yellowstone will be an epicenter for an extinction level/cataclysmic  event ?


After touring Mt St. Helen's monument I believe if Mother Nature wants to fuck our shit up, she will.[red]


+1

ain't nuthin we can do about it , fellers....
Link Posted: 12/28/2008 9:20:01 PM EST
[#4]
NoStockBikes has it right. Clustering is common in seismic areas. In fact, if you don't have clustering, THEN you don't have random chance occuring.
Link Posted: 12/28/2008 9:22:22 PM EST
[#5]
Quoted:
What's "tinfoil" about seismic activity ?

Or do you just mean the disaster theory that Yellowstone will be an epicenter for an extinction level/cataclysmic  event ?


After touring Mt St. Helen's monument I believe if Mother Nature wants to fuck our shit up, she will.


This should be the tag-line for every Discovery Channel "special".
Link Posted: 12/28/2008 9:25:07 PM EST
[#6]
Quoted:
What's "tinfoil" about seismic activity ?

Or do you just mean the disaster theory that Yellowstone will be an epicenter for an extinction level/cataclysmic event ?


After touring Mt St. Helen's monument I believe if Mother Nature wants to fuck our shit up, she will.



I'm not aware of any theory that says the Yellowstone Caldera presents a risk for an extinction level event, however, any Survivalist worth his salt knows that we are overdue for another Explosion.  It is only expected to outright kill inhabitants within a few hundred miles.  It will also bury all the cropland to the East, out to the Mississippi river or so.  The effect on the US economy would probably be termed "cataclysmic"  

Could happen tonight, could happen in 10,000 years.

-Posting from Cheyenne WY.    ...All quiet on the Western Front......


Link Posted: 12/28/2008 10:44:59 PM EST
[#7]
i was watching a show on Cable about the caldera...   its a massive bubble growing under the lake,  they say if it blows , its what is called a super eruption...and they did say something like E.L.E. , can we say nuclear winter globally.
Link Posted: 12/29/2008 6:53:43 AM EST
[#8]
Water and high silica magma make messes.

Not seeing a fault co-incident with the quakes. Could be a new fault, I suppose.

What's going on with the average depth of these quakes?

Are they getting shallower?
Link Posted: 12/29/2008 7:05:44 AM EST
[#9]
Being from Cali and living in NV, earthquakes are part of life.

Here is a map of the last week of CA & NV quakes. I look at this once in a while and this is normal.

Unless the quake is 5 or better or right under you, you can't feel it.

The Long Valley Caldera was supposed to blow back in the 80's. It was going to make St. Hellens look like a joke. You could pick up a house in Mammoth for 10 cents on the dollar. Nothing happend, just a few more quakes than normal. I used to live in Mammoth and there is a BIG crack running thru the forest from an old quake. 15-20 feet wide and 20-30 feet deep.
Link Posted: 12/29/2008 7:21:00 AM EST
[#10]
Quoted:
Quoted:



The University of Utah Seismograph Stations reports that a swarm of small earthquakes of magnitude 3.5 and smaller is occurring beneath Yellowstone Lake in Yellowstone National Park, five to nine miles south-southeast of Fishing Bridge, Wyoming. The swarm began yesterday afternoon, Dec. 26, and has continued and intensified today. The two largest earthquakes in this swarm have been shocks of magnitude 3.5 and 3.4 which occurred at 1:17 and 1:26 pm MST, respectively, today. Many smaller earthquakes have also occurred, including three events this morning of magnitude 2.5 to 2.8 and a magnitude 3.2 event at 3:30 pm MST. Some of the earthquakes in the swarm have been reported felt by people in the Yellowstone Lake area. Swarms of this nature are relatively common in this part of Yellowstone Park.




This line jumped out at me. Out of context, sure 23 quakes is alarming. Not much more than a reminder that it's alive.


how about swarms in an area that are uncommon:  "earthquake swarms shake maupin, or"

from the article, reno, nv, which is on a fault so it's not unexpected, has been experiencing "swarms" as well.  the scientists are not sure what is causing the oregon earthquakes as the locations do not correlate highly to the known faults - some guess magma movement.

there is seismic activity throughout the US on a daily basis, we just haven't had a big news-worthy event in a long time.  do i think the yellowstone caldera will go up - sure, someday.  

Link Posted: 12/29/2008 7:26:54 AM EST
[#11]
It's nothing to worry about... yet.  The caldera has been rising at a record pace for the last three years though.  Things are "getting ready" - but when the show will be is anyone's guess.  Not an immediate threat, that's about all I can say.
Link Posted: 12/29/2008 7:48:47 AM EST
[#12]
Rough plots indcate the swarm is shallowing, averaging from 3.5 km early on to 0.75 now.

Frequency staying about the same.

If this article is correct:

http://newswise.com/articles/view/534941/

...then my highly ill informed opinion is that the upper pancake chamber popped its ceiling two days ago, and is creating stresses at very shallow levels.

Once again, water plus high silica magma makes real messes. That's a big lake.
Link Posted: 12/29/2008 7:52:04 AM EST
[#13]
Quoted:
Quoted:



The University of Utah Seismograph Stations reports that a swarm of small earthquakes of magnitude 3.5 and smaller is occurring beneath Yellowstone Lake in Yellowstone National Park, five to nine miles south-southeast of Fishing Bridge, Wyoming. The swarm began yesterday afternoon, Dec. 26, and has continued and intensified today. The two largest earthquakes in this swarm have been shocks of magnitude 3.5 and 3.4 which occurred at 1:17 and 1:26 pm MST, respectively, today. Many smaller earthquakes have also occurred, including three events this morning of magnitude 2.5 to 2.8 and a magnitude 3.2 event at 3:30 pm MST. Some of the earthquakes in the swarm have been reported felt by people in the Yellowstone Lake area. Swarms of this nature are relatively common in this part of Yellowstone Park.




This line jumped out at me. Out of context, sure 23 quakes is alarming. Not much more than a reminder that it's alive.



I looked at that too and agreed at first but....what if.... these swarms were not common 80-100 years ago. Perhaps they are common since a relativly recent time and "we" are just used to them in this location. I don't know how long this stuff has been monitored but maybe it has just been getting ready to blow for the last 150 years.
Link Posted: 12/29/2008 8:25:53 AM EST
[#14]
Whew, looks like I squeezed in one last look at Yellowstone and then got out just in time!  













Bummer that it is going to explode and all disappear in the next few days. I was really hoping to go back.
Link Posted: 12/29/2008 8:35:01 AM EST
[#15]
Link Posted: 12/29/2008 8:54:28 AM EST
[#16]
boomer, that looks like an awesome vacation.  if the yellowstone caldera blows as big as some of the predictions theorize, we'll all need mattracks on our vehicles to travel the frozen tundra of the US - that or dog sleds.
Link Posted: 12/29/2008 9:13:58 AM EST
[#17]
Quoted:
Rough plots indcate the swarm is shallowing, averaging from 3.5 km early on to 0.75 now.

Frequency staying about the same.

If this article is correct:

http://newswise.com/articles/view/534941/

...then my highly ill informed opinion is that the upper pancake chamber popped its ceiling two days ago, and is creating stresses at very shallow levels.

Once again, water plus high silica magma makes real messes. That's a big lake.


Yet no one is terribly concerned.   I recall that they were (or were starting to be about St. Helens) before it blew.
Link Posted: 12/29/2008 9:50:29 AM EST
[#18]
When Yellowstone lake starts to boil I want to see the video

My father is headed out there for for a few weeks if not months this spring/summer and I wish I could afford to pack up the kids and take a 2-week vacation out there as well.

If yellowstone goes, we are all screwed and there isn't much anybody can do to prepare for that.
Link Posted: 12/29/2008 9:54:43 AM EST
[#19]
Quoted:
When Yellowstone lake starts to boil I want to see the video

My father is headed out there for for a few weeks if not months this spring/summer and I wish I could afford to pack up the kids and take a 2-week vacation out there as well.

If yellowstone goes, we are all screwed and there isn't much anybody can do to prepare for that.



It will be interesting to see if there is a breakout.
Link Posted: 12/29/2008 9:54:47 AM EST
[#20]
Quoted:
Quoted:
Quoted:



The University of Utah Seismograph Stations reports that a swarm of small earthquakes of magnitude 3.5 and smaller is occurring beneath Yellowstone Lake in Yellowstone National Park, five to nine miles south-southeast of Fishing Bridge, Wyoming. The swarm began yesterday afternoon, Dec. 26, and has continued and intensified today. The two largest earthquakes in this swarm have been shocks of magnitude 3.5 and 3.4 which occurred at 1:17 and 1:26 pm MST, respectively, today. Many smaller earthquakes have also occurred, including three events this morning of magnitude 2.5 to 2.8 and a magnitude 3.2 event at 3:30 pm MST. Some of the earthquakes in the swarm have been reported felt by people in the Yellowstone Lake area. Swarms of this nature are relatively common in this part of Yellowstone Park.




This line jumped out at me. Out of context, sure 23 quakes is alarming. Not much more than a reminder that it's alive.



I looked at that too and agreed at first but....what if.... these swarms were not common 80-100 years ago. Perhaps they are common since a relativly recent time and "we" are just used to them in this location. I don't know how long this stuff has been monitored but maybe it has just been getting ready to blow for the last 150 years.


I concur. My point is that what happened isn't necessarily new news. In a grander timeline, a "swarm of swarms" probably means something. I'm just saying that we shouldn't be any more concerned 2 days after this latest swarm than we were 2 days before this latest swarm, because apparently it's normal for the status quo, just like Old Faithful geyser and those bubbling mud pits. It's just a reminder that it's alive. Might blow tomorrow, might blow 100,000 years from now. An uncommon swarm would be concerning, and indicate that the status quo is changing.
Link Posted: 12/29/2008 10:22:13 AM EST
[#21]
Quoted:
An uncommon swarm would be concerning, and indicate that the status quo is changing.


Considering how old Yellowstone is and how long we've been monitoring it, I think it's more than a little presumptuous to assume what is and is not "normal" for the area, particularly for something as minor as these common small seismic events.

And the status quo at Yellowstone is an ever changing and ever evolving process, just on a time line difficult for most of us to comprehend.

From a survival standpoint, I don't think a super caldera eruption is and event that can really be prepared for. If that concerned about it, like a nuclear blast, try to live as far away from where you think one might occur.

Mt Rainier, Glacier Peak, Mt Baker, etc may one day erupt in my backyard, too. While maintaining awareness and basic preparedness, I'm not going to live my life in fear of such events. The sun is going to go supernova at some point as well. In the end, we're all still going to die.
Link Posted: 12/29/2008 10:22:24 AM EST
[#22]
Quoted:
Quoted:
Rough plots indcate the swarm is shallowing, averaging from 3.5 km early on to 0.75 now.

Frequency staying about the same.

If this article is correct:

http://newswise.com/articles/view/534941/

...then my highly ill informed opinion is that the upper pancake chamber popped its ceiling two days ago, and is creating stresses at very shallow levels.

Once again, water plus high silica magma makes real messes. That's a big lake.


Yet no one is terribly concerned.   I recall that they were (or were starting to be about St. Helens) before it blew.


St. Helens had a massive bulge before it blew, and I remember looking at the pics and thinking it's just a matter of days, if that. Seeing that much mountain bend like that just isn't natural.

In this case, I just don't know. I don't like the combination of a triggering event 6 km down, where the magma pancake is supposed to be, followed by some very shallow rumbles under a lake that big, but I'm no geologist. Something is moving around just under the surface, as shallow as one tenth kilometer, which is what, 330 feet?

Three new quakes in the last hour, magnitude 3.3, 2.2 and 2.0, all a mile or less down. Another event down at pancake level last night. A quake one hour ago at 1.8 km down, another 45 minutes ago at 1.6 km down, a third 37 minutes ago 1.0 km down. A statistical pool of three events is hardly large enough to draw conclusions from, but the last four have definitely originated shallower and shallower.

If there isn't enough data to draw conclusions from, all that's left is anecdotal evidence, to wit:

1. Highest uplift rate in ~90 years, caldera wide, followed by

2. A quake at the top of the upper magma dome, followed by,

3. Additional quakes from there up to just below the surface, followed by

4. Additional quakes at upper limit of magma dome, followed by,

5. A series of new quakes, in close succession, trending from lower to higher.

Again, I'm no geologist, but it sure would be hard for me to categorically rule out a rising magma plume, ascending to very near a large body of water.

Wonder what the lake temperatures are doing in that area?

ETA: they just added a new one, in between the 2.2 and 2.0, half a klick down, magnitude 2.9, making 4 in the last hour.

http://www.seis.utah.edu/req2webdir/recenteqs/Maps/Yellowstone.html



Link Posted: 12/29/2008 10:29:31 AM EST
[#23]
Quoted:
If there isn't enough data to draw conclusions from, all that's left is anecdotal evidence, to wit:

1. Highest uplift rate in ~90 years, caldera wide, followed by

2. A quake at the top of the upper magma dome, followed by,

3. Additional quakes from there up to just below the surface, followed by

4. Additional quakes at upper limit of magma dome, followed by,

5. A series of new quakes, in close succession, trending from lower to higher.

Again, I'm no geologist, but it sure would be hard for me to categorically rule out a rising magma plume, ascending to very near a large body of water.

Wonder what the lake temperatures are doing in that area?




And on a time scale of hundreds, thousands, and tens of thousands of years, are we certain that this is not normal?
Link Posted: 12/29/2008 10:30:42 AM EST
[#24]
Keeping a list as long as we are all watching

http://www.seis.utah.edu/req2webdir/recenteqs/Maps/Yellowstone_full.html

map 0.7  2009/01/06 06:43:50 41.707N 112.377W 11.2   10 km ( 6 mi) SE  of  Howell, UT
map 0.2  2009/01/06 02:51:04 44.748N 111.127W  9.5   10 km ( 6 mi) N   of  West Yellowstone, MT
map 1.2  2009/01/05 21:37:08 38.708N 112.564W  7.0   15 km ( 9 mi) SW  of  Kanosh, UT
map 1.7  2009/01/05 21:32:11 39.427N 111.225W  8.2   24 km (15 mi) ESE of  Spring City, UT
map 1.6  2009/01/05 21:27:23 39.153N 111.930W  6.5   10 km ( 6 mi) W   of  Gunnison, UT
map 1.8  2009/01/05 18:50:10 39.426N 111.216W  8.4   24 km (15 mi) WNW of  Huntington, UT
map 1.7  2009/01/05 18:04:25 37.628N 113.006W  7.0    9 km ( 5 mi) SE  of  Cedar City, UT
map 0.1  2009/01/05 14:55:42 44.759N 111.135W 11.3   11 km ( 7 mi) NNW of  West Yellowstone, MT
map 1.0  2009/01/05 14:06:49 37.857N 113.098W  6.9   12 km ( 7 mi) NNW of  Enoch, UT
map 1.5  2009/01/05 11:28:15 37.582N 113.546W  9.5   15 km ( 9 mi) E   of  Enterprise, UT
map 0.1  2009/01/05 11:08:06 44.763N 111.113W 11.4   11 km ( 7 mi) N   of  West Yellowstone, MT
map 0.1  2009/01/05 05:37:30 44.749N 111.135W 10.9   10 km ( 6 mi) NNW of  West Yellowstone, MT
map 1.3  2009/01/05 05:31:55 44.512N 110.374W  2.3   60 km (37 mi) ESE of  West Yellowstone, MT
map 0.4  2009/01/05 04:28:55 44.748N 111.135W 11.0   10 km ( 6 mi) NNW of  West Yellowstone, MT
map 0.6  2009/01/05 04:12:21 44.740N 111.131W  8.2    9 km ( 6 mi) NNW of  West Yellowstone, MT
map 1.6  2009/01/04 21:27:49 44.316N 111.005W  5.9   33 km (21 mi) SE  of  Island Park, ID
map 1.5  2009/01/04 16:58:02 39.629N 110.420W  2.4    9 km ( 5 mi) N   of  Sunnyside, UT
map 0.1  2009/01/04 15:39:39 44.738N 111.199W 12.5   11 km ( 7 mi) NW  of  West Yellowstone, MT
map 1.9  2009/01/04 02:17:13 44.503N 110.376W  0.0   60 km (38 mi) ESE of  West Yellowstone, MT
map 1.1  2009/01/04 01:54:04 39.052N 111.443W 17.5   22 km (14 mi) NW  of  Emery, UT
map 1.4  2009/01/04 00:25:47 39.627N 110.419W  2.3    8 km ( 5 mi) N   of  Sunnyside, UT
map 1.1  2009/01/04 00:09:28 44.579N 110.664W 11.3   36 km (22 mi) ESE of  West Yellowstone, MT
map 1.3  2009/01/04 00:09:09 44.609N 110.688W  7.6   34 km (21 mi) E   of  West Yellowstone, MT
map 1.4  2009/01/04 00:08:49 44.610N 110.681W  8.3   34 km (21 mi) E   of  West Yellowstone, MT
map 0.5  2009/01/03 23:47:30 44.060N 110.481W  3.1   53 km (33 mi) NE  of  Alta, WY
map 0.3  2009/01/03 23:12:01 44.754N 111.133W 10.7   10 km ( 7 mi) NNW of  West Yellowstone, MT
map 0.9  2009/01/03 22:46:23 39.886N 111.969W  2.6    9 km ( 6 mi) SW  of  Goshen, UT
map 1.1  2009/01/03 22:46:17 39.632N 110.426W  1.9    9 km ( 6 mi) NNW of  Sunnyside, UT
map 1.8  2009/01/03 20:46:19 44.539N 110.380W  0.2   59 km (37 mi) ESE of  West Yellowstone, MT
map 1.2  2009/01/03 19:35:49 39.690N 110.496W  1.8   17 km (11 mi) NNW of  Sunnyside, UT
map 0.9  2009/01/03 19:20:15 44.747N 111.128W  7.9   10 km ( 6 mi) N   of  West Yellowstone, MT
map 1.2  2009/01/03 16:07:18 39.693N 110.499W  1.9   18 km (11 mi) NNW of  Sunnyside, UT
map 0.5  2009/01/03 09:30:11 44.796N 110.972W  4.2   18 km (11 mi) NE  of  West Yellowstone, MT
map 1.6  2009/01/03 09:29:04 44.537N 110.374W  0.7   60 km (37 mi) ESE of  West Yellowstone, MT
map 0.3  2009/01/03 03:53:05 44.599N 110.347W  3.2   57 km (35 mi) SSE of  Gardiner, MT
map 2.3  2009/01/03 02:03:33 44.533N 110.377W  0.4   59 km (37 mi) ESE of  West Yellowstone, MT
map 0.8  2009/01/02 23:53:17 41.903N 111.513W  7.6   10 km ( 6 mi) WSW of  Garden City, UT
map 1.7  2009/01/02 23:47:40 44.544N 110.363W  1.0   60 km (37 mi) ESE of  West Yellowstone, MT
map 0.9  2009/01/02 23:47:23 44.533N 110.372W  0.4   60 km (37 mi) ESE of  West Yellowstone, MT
map 2.4  2009/01/02 22:39:11 41.892N 111.513W  4.3   10 km ( 6 mi) W   of  Garden, UT
map 1.6  2009/01/02 22:22:01 44.539N 110.373W  0.9   60 km (37 mi) ESE of  West Yellowstone, MT
map 0.9  2009/01/02 21:43:27 44.542N 110.373W  1.6   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.3  2009/01/02 20:23:46 39.636N 110.420W  0.0   10 km ( 6 mi) N   of  Sunnyside, UT
map 1.0  2009/01/02 20:12:05 44.483N 110.374W  2.6   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.8  2009/01/02 19:58:38 44.538N 110.371W  1.4   60 km (37 mi) ESE of  West Yellowstone, MT
map 0.9  2009/01/02 19:57:32 44.532N 110.380W  1.4   59 km (37 mi) ESE of  West Yellowstone, MT
map 2.2  2009/01/02 19:54:10 44.538N 110.373W  1.4   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.3  2009/01/02 19:40:50 44.548N 110.355W  1.8   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.0  2009/01/02 19:40:20 44.547N 110.350W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.1  2009/01/02 18:45:29 44.535N 110.371W  1.2   60 km (37 mi) ESE of  West Yellowstone, MT
map 2.5  2009/01/02 17:23:23 44.552N 110.366W  1.1   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.5  2009/01/02 16:35:05 44.538N 110.371W  1.8   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.1  2009/01/02 15:55:59 44.516N 110.360W  2.2   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.2  2009/01/02 15:30:14 44.543N 110.366W  2.0   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.6  2009/01/02 15:25:33 44.568N 110.356W  1.6   59 km (37 mi) SSE of  Gardiner, MT
map 2.4  2009/01/02 15:23:54 44.568N 110.361W  1.3   59 km (37 mi) SSE of  Gardiner, MT
map 1.7  2009/01/02 15:06:20 44.523N 110.369W  0.1   60 km (38 mi) ESE of  West Yellowstone, MT
map 1.8  2009/01/02 14:59:46 44.559N 110.347W  1.9   60 km (37 mi) SSW of  Cooke City-Silver Gate, MT
map 1.8  2009/01/02 14:32:15 44.539N 110.367W  1.0   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.9  2009/01/02 14:25:34 44.545N 110.357W  0.3   61 km (38 mi) ESE of  West Yellowstone, MT
map 2.7  2009/01/02 13:33:53 44.553N 110.338W  0.9   61 km (38 mi) SSW of  Cooke City-Silver Gate, MT
map 2.2  2009/01/02 13:24:50 44.509N 110.371W  0.0   61 km (38 mi) ESE of  West Yellowstone, MT
map 2.7  2009/01/02 13:23:57 44.556N 110.357W  1.3   60 km (37 mi) SSE of  Gardiner, MT
map 1.4  2009/01/02 13:23:19 44.500N 110.301W  2.1   64 km (40 mi) SSW of  Cooke City-Silver Gate, MT
MAP 3.1  2009/01/02 13:15:39 44.528N 110.366W  3.4   60 km (38 mi) ESE of  West Yellowstone, MT
map 2.5  2009/01/02 13:13:35 44.549N 110.364W  1.0   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.1  2009/01/02 13:02:33 44.543N 110.364W  0.0   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.4  2009/01/02 13:02:06 44.520N 110.368W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.2  2009/01/02 13:01:24 44.524N 110.373W  2.4   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.9  2009/01/02 12:54:27 44.523N 110.369W  2.1   60 km (38 mi) ESE of  West Yellowstone, MT
map 2.5  2009/01/02 12:44:01 44.552N 110.358W  1.0   60 km (38 mi) E   of  West Yellowstone, MT
MAP 3.2  2009/01/02 12:40:53 44.549N 110.370W  0.2   60 km (37 mi) ESE of  West Yellowstone, MT
map 0.8  2009/01/02 12:39:49 44.540N 110.373W  2.0   60 km (37 mi) ESE of  West Yellowstone, MT
map 0.8  2009/01/02 12:25:39 41.891N 111.509W  2.5    9 km ( 6 mi) W   of  Garden, UT
map 1.7  2009/01/02 12:10:13 44.557N 110.349W  0.2   61 km (38 mi) SSE of  Gardiner, MT
map 1.5  2009/01/02 12:08:16 44.550N 110.369W  1.7   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.8  2009/01/02 12:06:53 44.550N 110.350W  0.0   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.4  2009/01/02 12:06:43 44.548N 110.354W  0.1   61 km (38 mi) ESE of  West Yellowstone, MT
map 2.3  2009/01/02 12:02:04 44.549N 110.358W  0.2   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.6  2009/01/02 11:59:08 44.552N 110.356W  0.8   61 km (38 mi) E   of  West Yellowstone, MT
map 1.5  2009/01/02 11:58:11 44.542N 110.369W  0.5   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.8  2009/01/02 11:57:56 44.550N 110.363W  1.3   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.9  2009/01/02 11:53:26 44.544N 110.370W  1.2   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.2  2009/01/02 11:50:37 44.549N 110.364W  1.0   60 km (37 mi) ESE of  West Yellowstone, MT
map 2.8  2009/01/02 11:48:21 44.551N 110.354W  0.6   61 km (38 mi) E   of  West Yellowstone, MT
map 2.4  2009/01/02 11:43:43 44.551N 110.358W  0.2   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.2  2009/01/02 11:39:19 44.559N 110.363W  0.0   60 km (37 mi) SSE of  Gardiner, MT
MAP 3.5  2009/01/02 11:32:49 44.549N 110.357W  5.4   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.3  2009/01/02 10:04:37 44.539N 110.368W  0.1   60 km (37 mi) ESE of  West Yellowstone, MT
map 0.8  2009/01/02 09:31:50 44.791N 111.083W  7.7   14 km ( 9 mi) N   of  West Yellowstone, MT
map 1.4  2009/01/02 08:01:19 44.541N 110.371W  2.5   60 km (37 mi) ESE of  West Yellowstone, MT
map 2.0  2009/01/02 07:00:30 44.546N 110.362W  0.2   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.6  2009/01/02 06:34:20 44.537N 110.361W  0.3   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.7  2009/01/02 06:07:22 44.520N 110.369W  0.0   60 km (38 mi) ESE of  West Yellowstone, MT
map 1.8  2009/01/02 05:21:29 41.891N 111.515W  7.8   10 km ( 6 mi) W   of  Garden, UT
map 0.8  2009/01/02 04:25:48 44.544N 110.366W  1.7   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.4  2009/01/02 03:24:15 39.635N 110.420W  0.0    9 km ( 6 mi) N   of  Sunnyside, UT
map 1.1  2009/01/02 03:06:55 41.888N 111.508W  2.3    9 km ( 6 mi) W   of  Garden, UT
map 1.0  2009/01/02 03:01:11 41.885N 111.506W  2.6    9 km ( 6 mi) W   of  Garden, UT
map 0.6  2009/01/02 03:00:27 41.889N 111.508W  2.8    9 km ( 6 mi) W   of  Garden, UT
map 0.8  2009/01/02 02:42:06 41.884N 111.503W  2.9    9 km ( 6 mi) W   of  Garden, UT
map 1.5  2009/01/02 02:39:39 41.890N 111.509W  6.0    9 km ( 6 mi) W   of  Garden, UT
map 0.9  2009/01/02 02:37:03 41.885N 111.509W  2.6    9 km ( 6 mi) W   of  Garden, UT
map 1.1  2009/01/02 02:34:34 41.892N 111.495W  2.2    8 km ( 5 mi) W   of  Garden, UT
map 1.5  2009/01/02 02:31:02 41.887N 111.511W  2.2   10 km ( 6 mi) W   of  Garden, UT
map 1.0  2009/01/02 02:29:24 41.889N 111.516W  2.3   10 km ( 6 mi) W   of  Garden, UT
map 1.2  2009/01/02 02:26:10 44.548N 110.351W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.5  2009/01/02 02:07:32 44.547N 110.350W  0.0   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.3  2009/01/01 23:45:41 44.528N 110.371W  1.0   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.6  2009/01/01 22:58:33 41.894N 111.508W  4.8    9 km ( 6 mi) W   of  Garden, UT
map 0.9  2009/01/01 22:51:48 44.547N 110.356W  1.2   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.7  2009/01/01 22:26:41 44.543N 110.351W  0.1   61 km (38 mi) ESE of  West Yellowstone, MT
map 0.7  2009/01/01 22:24:14 41.883N 111.502W 10.0    9 km ( 6 mi) W   of  Garden, UT
map 1.4  2009/01/01 22:22:21 44.541N 110.361W  0.8   60 km (38 mi) ESE of  West Yellowstone, MT
map 1.0  2009/01/01 22:21:07 41.889N 111.505W  8.1    9 km ( 6 mi) W   of  Garden, UT
map 1.5  2009/01/01 22:18:21 44.510N 110.389W  0.2   59 km (37 mi) ESE of  West Yellowstone, MT
map 2.1  2009/01/01 22:16:15 41.891N 111.511W  7.1   10 km ( 6 mi) W   of  Garden, UT
map 2.5  2009/01/01 22:10:54 44.546N 110.355W  0.1   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.7  2009/01/01 22:09:19 44.548N 110.369W  2.0   60 km (37 mi) ESE of  West Yellowstone, MT
map 2.2  2009/01/01 22:06:29 44.545N 110.350W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.3  2009/01/01 22:05:57 44.557N 110.372W  1.8   59 km (37 mi) E   of  West Yellowstone, MT
map 1.8  2009/01/01 21:49:56 44.547N 110.373W  1.8   59 km (37 mi) ESE of  West Yellowstone, MT
map 1.0  2009/01/01 21:44:38 44.551N 110.353W  0.8   61 km (38 mi) E   of  West Yellowstone, MT
map 1.2  2009/01/01 21:44:18 39.630N 110.427W  1.9    9 km ( 6 mi) NNW of  Sunnyside, UT
map 1.2  2009/01/01 21:31:13 44.552N 110.362W  1.0   60 km (37 mi) E   of  West Yellowstone, MT
map 1.7  2009/01/01 21:16:17 41.895N 111.511W  4.7   10 km ( 6 mi) W   of  Garden, UT
map 1.5  2009/01/01 21:09:48 41.893N 111.504W  6.4    9 km ( 6 mi) W   of  Garden, UT
map 0.6  2009/01/01 21:08:27 41.887N 111.498W  2.5    9 km ( 5 mi) W   of  Garden, UT
map 1.4  2009/01/01 19:26:06 44.559N 110.365W  1.5   60 km (37 mi) E   of  West Yellowstone, MT
map 1.2  2009/01/01 19:08:58 44.537N 110.370W  1.1   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.4  2009/01/01 19:01:38 44.557N 110.364W  1.9   60 km (37 mi) E   of  West Yellowstone, MT
map 1.4  2009/01/01 18:53:06 44.557N 110.372W  2.8   59 km (37 mi) E   of  West Yellowstone, MT
map 1.8  2009/01/01 18:47:46 44.545N 110.373W  1.0   60 km (37 mi) ESE of  West Yellowstone, MT
map 0.9  2009/01/01 18:35:14 41.893N 111.515W 13.4   10 km ( 6 mi) W   of  Garden, UT
map 1.5  2009/01/01 18:32:53 44.550N 110.356W  0.1   61 km (38 mi) ESE of  West Yellowstone, MT
MAP 3.0  2009/01/01 18:30:57 44.560N 110.320W  2.2   59 km (37 mi) SSW of  Cooke City-Silver Gate, MT
map 0.9  2009/01/01 18:24:54 44.560N 110.354W  0.0   60 km (37 mi) SSE of  Gardiner, MT
MAP 3.1  2009/01/01 18:21:19 44.556N 110.368W  3.7   60 km (37 mi) E   of  West Yellowstone, MT
MAP 3.1  2009/01/01 18:13:05 44.559N 110.367W  1.0   60 km (37 mi) E   of  West Yellowstone, MT
map 1.9  2009/01/01 18:12:14 44.564N 110.348W  0.4   60 km (37 mi) SSW of  Cooke City-Silver Gate, MT
map 1.5  2009/01/01 17:58:18 44.559N 110.348W  0.4   60 km (37 mi) SSW of  Cooke City-Silver Gate, MT
map 1.6  2009/01/01 17:55:24 41.896N 111.512W  5.4   10 km ( 6 mi) W   of  Garden, UT
map 2.0  2009/01/01 17:54:55 44.557N 110.348W  0.1   60 km (38 mi) SSW of  Cooke City-Silver Gate, MT
map 1.9  2009/01/01 17:44:29 44.551N 110.365W  1.2   60 km (37 mi) ESE of  West Yellowstone, MT
map 0.9  2009/01/01 17:38:51 41.890N 111.507W  2.6    9 km ( 6 mi) W   of  Garden, UT
map 0.8  2009/01/01 17:21:16 39.633N 110.420W  1.7    9 km ( 6 mi) N   of  Sunnyside, UT
map 0.8  2009/01/01 17:20:48 41.893N 111.506W  4.6    9 km ( 6 mi) W   of  Garden, UT
map 1.4  2009/01/01 17:15:03 41.885N 111.483W  3.0    7 km ( 5 mi) W   of  Garden, UT
map 1.9  2009/01/01 17:14:36 41.896N 111.523W  5.2   11 km ( 7 mi) W   of  Garden, UT
map 1.8  2009/01/01 16:31:24 44.567N 110.355W  1.3   59 km (37 mi) SSE of  Gardiner, MT
map 1.7  2009/01/01 15:41:59 44.554N 110.363W  1.4   60 km (37 mi) E   of  West Yellowstone, MT
map 1.5  2009/01/01 15:06:02 44.558N 110.353W  2.1   60 km (37 mi) SSE of  Gardiner, MT
map 1.4  2009/01/01 12:40:43 41.890N 111.505W  2.3    9 km ( 6 mi) W   of  Garden, UT
map 1.5  2009/01/01 12:40:04 41.894N 111.507W  5.6    9 km ( 6 mi) W   of  Garden, UT
map 1.2  2009/01/01 12:30:55 41.893N 111.507W  6.9    9 km ( 6 mi) W   of  Garden, UT
map 1.3  2009/01/01 11:34:04 44.566N 110.355W  1.4   59 km (37 mi) SSE of  Gardiner, MT
map 0.9  2009/01/01 11:23:58 44.534N 110.377W  2.0   59 km (37 mi) ESE of  West Yellowstone, MT
map 2.3  2009/01/01 11:14:13 44.549N 110.356W  0.8   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.9  2009/01/01 10:57:38 44.557N 110.350W  0.0   61 km (38 mi) SSE of  Gardiner, MT
map 1.0  2009/01/01 10:52:40 44.591N 110.332W  2.1   57 km (35 mi) SSW of  Cooke City-Silver Gate, MT
map 1.4  2009/01/01 10:46:04 44.559N 110.356W  1.0   60 km (37 mi) SSE of  Gardiner, MT
map 0.9  2009/01/01 10:39:24 44.556N 110.348W  0.0   61 km (38 mi) SSW of  Cooke City-Silver Gate, MT
map 1.4  2009/01/01 10:39:13 44.562N 110.359W  1.6   60 km (37 mi) SSE of  Gardiner, MT
map 1.3  2009/01/01 10:28:42 44.563N 110.357W  1.2   60 km (37 mi) SSE of  Gardiner, MT
map 1.3  2009/01/01 10:20:47 44.558N 110.349W  0.1   60 km (38 mi) SSE of  Gardiner, MT
map 1.3  2009/01/01 10:14:50 44.596N 110.335W  0.3   56 km (35 mi) SW  of  Cooke City-Silver Gate, MT
map 1.5  2009/01/01 10:00:40 44.562N 110.361W  2.0   60 km (37 mi) SSE of  Gardiner, MT
map 1.6  2009/01/01 09:59:35 44.564N 110.355W  1.2   60 km (37 mi) SSE of  Gardiner, MT
map 1.1  2009/01/01 09:58:46 44.567N 110.351W  1.3   59 km (37 mi) SSE of  Gardiner, MT
map 1.6  2009/01/01 09:57:03 44.564N 110.356W  1.4   60 km (37 mi) SSE of  Gardiner, MT
map 1.4  2009/01/01 09:54:39 44.511N 110.369W  2.2   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.0  2009/01/01 09:49:43 44.532N 110.367W  1.3   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.5  2009/01/01 09:40:25 44.522N 110.386W  2.0   59 km (37 mi) ESE of  West Yellowstone, MT
map 1.2  2009/01/01 09:36:05 44.534N 110.379W  2.1   59 km (37 mi) ESE of  West Yellowstone, MT
map 1.4  2009/01/01 09:12:02 41.892N 111.507W  2.8    9 km ( 6 mi) W   of  Garden, UT
map 1.1  2009/01/01 09:11:04 44.545N 110.356W  0.1   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.1  2009/01/01 09:10:18 44.541N 110.359W  0.0   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.3  2009/01/01 09:08:03 44.531N 110.371W  1.3   60 km (37 mi) ESE of  West Yellowstone, MT
map 2.2  2009/01/01 09:00:42 44.562N 110.351W  0.7   60 km (37 mi) SSE of  Gardiner, MT
map 0.6  2009/01/01 08:55:24 44.534N 110.368W  0.2   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.6  2009/01/01 08:54:21 44.559N 110.352W  1.0   60 km (37 mi) SSE of  Gardiner, MT
map 1.8  2009/01/01 08:53:44 44.557N 110.356W  1.3   60 km (37 mi) SSE of  Gardiner, MT
map 1.7  2009/01/01 08:53:32 38.993N 111.389W 12.0   14 km ( 9 mi) WNW of  Emery, UT
map 1.5  2009/01/01 08:36:09 44.557N 110.352W  0.9   60 km (38 mi) SSE of  Gardiner, MT
map 1.2  2009/01/01 08:35:49 44.556N 110.354W  1.0   60 km (38 mi) SSE of  Gardiner, MT
map 1.5  2009/01/01 08:34:32 44.529N 110.370W  0.9   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.5  2009/01/01 08:15:57 44.539N 110.368W  0.7   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.3  2009/01/01 08:13:47 44.531N 110.376W  0.6   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.6  2009/01/01 08:10:04 44.531N 110.372W  1.8   60 km (37 mi) ESE of  West Yellowstone, MT
map 2.0  2009/01/01 07:59:55 44.478N 110.366W  2.6   62 km (39 mi) ESE of  West Yellowstone, MT
map 2.3  2009/01/01 07:35:51 36.782N 112.835W  3.0   21 km (13 mi) SW  of  Kaibab, AZ
map 1.3  2009/01/01 07:18:33 39.630N 110.428W  2.0    9 km ( 6 mi) NNW of  Sunnyside, UT
map 1.2  2009/01/01 07:18:29 44.474N 110.368W  2.4   62 km (39 mi) ESE of  West Yellowstone, MT
map 1.3  2009/01/01 07:02:32 44.531N 110.377W  1.1   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.5  2009/01/01 07:01:04 41.891N 111.507W  5.9    9 km ( 6 mi) W   of  Garden, UT
map 1.2  2009/01/01 06:53:30 44.539N 110.371W  1.4   60 km (37 mi) ESE of  West Yellowstone, MT
map 1.4  2009/01/01 06:16:56 44.550N 110.358W  0.9   60 km (38 mi) ESE of  West Yellowstone, MT
map 1.4  2009/01/01 06:09:01 44.546N 110.359W  0.9   61 km (38 mi) ESE of  West Yellowstone, MT
map 1.6  2009/01/01 06:04:05 44.561N 110.339W  0.0   60 km (37 mi) SSW of  Cooke City-Silver Gate, MT
map 1.1  2009/01/01 05:53:56 44.547N 110.359W  1.0   60 km (38 mi) ESE of  West Yellowstone, MT

2.7  2009/01/01 05:51:24 44.548N 110.361W  0.2   60 km (38 mi) ESE of  West Yellowstone, MT
2.4  2009/01/01 03:13:52 44.541N 110.389W  0.2   58 km (36 mi) ESE of  West Yellowstone, MT
2.4  2009/01/01 03:12:57 44.325N 110.388W 37.0   68 km (42 mi) ESE of  West Yellowstone, MT
2.3  2009/01/01 03:06:51 44.529N 110.370W  0.5   60 km (37 mi) ESE of  West Yellowstone, MT
2.3  2009/01/01 03:02:57 44.528N 110.346W  0.2   62 km (39 mi) ESE of  West Yellowstone, MT
1.6  2008/12/31 23:59:39 44.504N 110.340W  0.9   63 km (39 mi) ESE of  West Yellowstone, MT
2.1  2008/12/31 22:29:09 44.507N 110.309W  1.5   64 km (40 mi) SSW of  Cooke City-Silver Gate, MT
2.2  2008/12/31 22:19:51 44.509N 110.350W  1.7   62 km (39 mi) ESE of  West Yellowstone, MT
1.5  2008/12/31 08:05:00 44.514N 110.360W  1.1   61 km (38 mi) ESE of  West Yellowstone, MT
3.3  2008/12/31 08:02:11 44.523N 110.361W  4.9   61 km (38 mi) ESE of  West Yellowstone, MT
1.6  2008/12/31 05:26:56 44.501N 110.385W  2.2   60 km (37 mi) ESE of  West Yellowstone, MT
1.4  2008/12/31 05:23:52 44.520N 110.371W  1.0   60 km (37 mi) ESE of  West Yellowstone, MT
1.7  2008/12/31 04:52:19 44.503N 110.371W  0.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.3  2008/12/31 04:40:04 44.526N 110.368W  2.2   60 km (38 mi) ESE of  West Yellowstone, MT
1.4  2008/12/31 04:22:16 44.520N 110.382W  2.2   59 km (37 mi) ESE of  West Yellowstone, MT
2.7  2008/12/31 04:15:44 44.522N 110.372W  1.2   60 km (37 mi) ESE of  West Yellowstone, MT
1.5  2008/12/31 04:12:40 44.516N 110.373W  0.6   60 km (37 mi) ESE of  West Yellowstone, MT
1.8  2008/12/31 04:08:59 44.532N 110.381W  0.4   59 km (37 mi) ESE of  West Yellowstone, MT
0.6  2008/12/31 04:08:34 44.527N 110.367W  2.1   60 km (38 mi) ESE of  West Yellowstone, MT
2.4  2008/12/31 04:06:14 44.520N 110.371W  1.2   60 km (37 mi) ESE of  West Yellowstone, MT
1.9  2008/12/31 04:05:12 44.532N 110.380W  0.3   59 km (37 mi) ESE of  West Yellowstone, MT
1.3  2008/12/31 03:53:29 44.520N 110.364W  2.2   61 km (38 mi) ESE of  West Yellowstone, MT
0.9  2008/12/31 03:52:59 44.504N 110.381W  2.1   60 km (37 mi) ESE of  West Yellowstone, MT
1.5  2008/12/31 03:52:23 44.546N 110.394W  0.7   58 km (36 mi) ESE of  West Yellowstone, MT
1.9  2008/12/31 03:43:37 44.524N 110.372W  1.5   60 km (37 mi) ESE of  West Yellowstone, MT
0.9  2008/12/31 03:26:38 44.523N 110.367W  0.0   61 km (38 mi) ESE of  West Yellowstone, MT
1.1  2008/12/31 03:26:01 44.532N 110.381W  2.0   59 km (37 mi) ESE of  West Yellowstone, MT
1.8  2008/12/31 03:23:43 44.530N 110.380W  1.0   59 km (37 mi) ESE of  West Yellowstone, MT
1.2  2008/12/31 03:23:07 44.529N 110.380W  0.9   59 km (37 mi) ESE of  West Yellowstone, MT
1.5  2008/12/31 03:21:49 44.521N 110.373W  2.1   60 km (37 mi) ESE of  West Yellowstone, MT
1.4  2008/12/31 03:16:44 44.527N 110.367W  0.8   60 km (38 mi) ESE of  West Yellowstone, MT
1.4  2008/12/31 03:14:42 44.568N 110.444W  7.2   53 km (33 mi) E   of  West Yellowstone, MT
1.9  2008/12/31 03:13:50 44.531N 110.381W  2.1   59 km (37 mi) ESE of  West Yellowstone, MT
1.4  2008/12/31 03:11:14 44.518N 110.369W  2.2   61 km (38 mi) ESE of  West Yellowstone, MT
1.3  2008/12/31 03:08:13 44.529N 110.377W  2.0   60 km (37 mi) ESE of  West Yellowstone, MT
0.9  2008/12/31 03:07:52 44.515N 110.367W  2.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.1  2008/12/31 03:02:32 44.525N 110.378W  0.7   60 km (37 mi) ESE of  West Yellowstone, MT
1.3  2008/12/31 02:56:38 44.525N 110.371W  1.8   60 km (37 mi) ESE of  West Yellowstone, MT
1.1  2008/12/31 02:56:09 44.508N 110.362W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
1.1  2008/12/31 02:45:54 44.511N 110.361W  2.5   61 km (38 mi) ESE of  West Yellowstone, MT
1.7  2008/12/31 02:45:34 44.507N 110.364W  2.2   61 km (38 mi) ESE of  West Yellowstone, MT
1.1  2008/12/31 02:45:02 44.516N 110.370W  2.3   61 km (38 mi) ESE of  West Yellowstone, MT
1.2  2008/12/31 02:37:18 44.512N 110.356W  1.5   62 km (38 mi) ESE of  West Yellowstone, MT
0.5  2008/12/31 02:35:21 44.724N 111.158W  6.7    8 km ( 5 mi) NNW of  West Yellowstone, MT
1.4  2008/12/31 02:34:27 44.522N 110.365W  0.1   61 km (38 mi) ESE of  West Yellowstone, MT
1.3  2008/12/31 02:33:05 44.500N 110.369W  3.6   61 km (38 mi) ESE of  West Yellowstone, MT
1.3  2008/12/31 02:26:32 44.535N 110.365W  0.9   60 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/31 02:21:28 44.533N 110.380W  0.7   59 km (37 mi) ESE of  West Yellowstone, MT
0.9  2008/12/31 02:18:31 44.523N 110.367W  1.9   61 km (38 mi) ESE of  West Yellowstone, MT
1.4  2008/12/31 02:16:01 44.525N 110.373W  2.2   60 km (37 mi) ESE of  West Yellowstone, MT
1.3  2008/12/31 02:13:59 44.514N 110.370W  1.6   61 km (38 mi) ESE of  West Yellowstone, MT
2.6  2008/12/31 02:05:59 44.520N 110.368W  0.5   61 km (38 mi) ESE of  West Yellowstone, MT
3.6  2008/12/31 02:02:28 44.525N 110.362W  4.3   61 km (38 mi) ESE of  West Yellowstone, MT
1.2  2008/12/31 02:00:19 44.518N 110.366W  1.9   61 km (38 mi) ESE of  West Yellowstone, MT
2.5  2008/12/31 01:59:21 44.522N 110.362W  0.5   61 km (38 mi) ESE of  West Yellowstone, MT
3.0  2008/12/31 01:58:11 44.527N 110.369W  1.3   60 km (37 mi) ESE of  West Yellowstone, MT
1.1  2008/12/31 00:27:46 44.535N 110.355W  0.4   61 km (38 mi) ESE of  West Yellowstone, MT
0.8  2008/12/31 00:22:00 44.531N 110.376W  1.2   60 km (37 mi) ESE of  West Yellowstone, MT
0.1  2008/12/30 23:39:04 44.734N 111.217W  3.4   12 km ( 7 mi) NW  of  West Yellowstone, MT
1.0  2008/12/30 23:19:28 44.528N 110.378W  1.0   60 km (37 mi) ESE of  West Yellowstone, MT
1.5  2008/12/30 23:02:54 44.529N 110.358W  2.0   61 km (38 mi) ESE of  West Yellowstone, MT
1.6  2008/12/30 22:59:03 44.531N 110.355W  2.0   61 km (38 mi) ESE of  West Yellowstone, MT
1.1  2008/12/30 22:58:39 44.528N 110.377W  2.0   60 km (37 mi) ESE of  West Yellowstone, MT
1.1  2008/12/30 22:24:55 44.543N 110.344W  0.1   62 km (38 mi) SSW of  Cooke City-Silver Gate, MT
0.6  2008/12/30 22:24:26 44.551N 110.358W  2.1   60 km (38 mi) E   of  West Yellowstone, MT
1.2  2008/12/30 22:22:43 44.526N 110.379W  1.1   59 km (37 mi) ESE of  West Yellowstone, MT
2.5  2008/12/30 22:17:41 44.530N 110.375W  1.1   60 km (37 mi) ESE of  West Yellowstone, MT
2.8  2008/12/30 22:06:40 44.529N 110.382W  1.6   59 km (37 mi) ESE of  West Yellowstone, MT
1.0  2008/12/30 21:49:57 44.726N 111.162W  7.4    8 km ( 5 mi) NNW of  West Yellowstone, MT
1.9  2008/12/30 13:21:32 44.535N 110.353W  0.0   61 km (38 mi) ESE of  West Yellowstone, MT
0.8  2008/12/30 12:06:13 44.535N 110.352W  0.2   61 km (38 mi) ESE of  West Yellowstone, MT
1.3  2008/12/30 12:05:33 44.731N 111.165W  7.3    9 km ( 6 mi) NNW of  West Yellowstone, MT
2.8  2008/12/30 12:05:13 44.540N 110.350W  0.1   61 km (38 mi) ESE of  West Yellowstone, MT
1.1  2008/12/30 12:01:06 44.533N 110.359W  2.3   61 km (38 mi) ESE of  West Yellowstone, MT
2.8  2008/12/30 04:59:07 44.533N 110.374W  0.9   60 km (37 mi) ESE of  West Yellowstone, MT
1.5  2008/12/30 02:17:43 44.525N 110.379W  0.0   59 km (37 mi) ESE of  West Yellowstone, MT
1.4  2008/12/30 02:10:20 44.527N 110.380W  0.6   59 km (37 mi) ESE of  West Yellowstone, MT
0.8  2008/12/30 02:05:33 44.498N 110.389W  2.4   60 km (37 mi) ESE of  West Yellowstone, MT
0.9  2008/12/29 23:05:34 44.477N 110.374W  2.9   62 km (38 mi) ESE of  West Yellowstone, MT
1.0  2008/12/29 21:02:27 44.503N 110.390W  2.4   59 km (37 mi) ESE of  West Yellowstone, MT
0.3  2008/12/29 20:45:59 44.517N 110.381W  2.2   60 km (37 mi) ESE of  West Yellowstone, MT
1.1  2008/12/29 20:16:31 44.524N 110.406W  1.6   57 km (36 mi) ESE of  West Yellowstone, MT
1.5  2008/12/29 20:11:35 44.552N 110.359W  2.1   60 km (38 mi) E   of  West Yellowstone, MT
1.0  2008/12/29 20:08:25 44.499N 110.379W  2.2   60 km (37 mi) ESE of  West Yellowstone, MT
1.2  2008/12/29 20:02:08 44.595N 110.318W 13.0   56 km (35 mi) SSW of  Cooke City-Silver Gate, MT
1.1  2008/12/29 19:50:02 44.787N 110.996W  7.2   16 km (10 mi) NNE of  West Yellowstone, MT
0.9  2008/12/29 19:47:07 44.788N 110.994W  7.4   17 km (10 mi) NNE of  West Yellowstone, MT
1.2  2008/12/29 19:44:42 44.788N 110.995W  7.2   17 km (10 mi) NNE of  West Yellowstone, MT
0.5  2008/12/29 19:38:20 44.798N 110.988W  4.0   18 km (11 mi) NNE of  West Yellowstone, MT
1.2  2008/12/29 19:29:17 44.712N 111.147W  2.5    7 km ( 4 mi) NNW of  West Yellowstone, MT
0.9  2008/12/29 19:26:29 44.767N 110.959W  1.8   16 km (10 mi) NE  of  West Yellowstone, MT
1.6  2008/12/29 19:25:29 44.787N 111.001W  7.5   16 km (10 mi) NNE of  West Yellowstone, MT
1.3  2008/12/29 19:13:36 44.516N 110.360W  2.5   61 km (38 mi) ESE of  West Yellowstone, MT
1.0  2008/12/29 19:00:37 44.553N 110.341W  2.2   61 km (38 mi) SSW of  Cooke City-Silver Gate, MT
1.0  2008/12/29 18:51:00 44.517N 110.354W  1.8   62 km (38 mi) ESE of  West Yellowstone, MT
1.3  2008/12/29 18:47:56 44.527N 110.381W  1.1   59 km (37 mi) ESE of  West Yellowstone, MT
2.3  2008/12/29 18:47:26 44.532N 110.359W  2.0   61 km (38 mi) ESE of  West Yellowstone, MT
1.7  2008/12/29 18:35:08 44.530N 110.361W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
1.5  2008/12/29 18:15:37 44.522N 110.360W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
2.1  2008/12/29 17:51:20 44.505N 110.373W  0.2   61 km (38 mi) ESE of  West Yellowstone, MT
1.0  2008/12/29 17:41:35 44.522N 110.361W  1.8   61 km (38 mi) ESE of  West Yellowstone, MT
2.8  2008/12/29 17:36:39 44.525N 110.362W  1.2   61 km (38 mi) ESE of  West Yellowstone, MT
0.8  2008/12/29 14:25:44 44.526N 110.362W  1.4   61 km (38 mi) ESE of  West Yellowstone, MT
2.4  2008/12/29 14:25:15 44.525N 110.360W  2.0   61 km (38 mi) ESE of  West Yellowstone, MT
1.6  2008/12/29 14:18:51 44.521N 110.362W  2.2   61 km (38 mi) ESE of  West Yellowstone, MT
1.8  2008/12/29 14:18:36 44.522N 110.359W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
2.9  2008/12/29 13:38:25 44.514N 110.381W  2.1   60 km (37 mi) ESE of  West Yellowstone, MT
2.3  2008/12/29 13:38:04 44.511N 110.385W  2.3   60 km (37 mi) ESE of  West Yellowstone, MT
1.0  2008/12/29 13:26:29 44.520N 110.355W  2.2   62 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/29 13:14:26 44.498N 110.364W  2.3   62 km (38 mi) ESE of  West Yellowstone, MT
1.4  2008/12/29 13:13:31 44.508N 110.359W  2.2   62 km (38 mi) ESE of  West Yellowstone, MT
0.9  2008/12/29 13:02:22 44.514N 110.380W  2.1   60 km (37 mi) ESE of  West Yellowstone, MT
0.8  2008/12/29 13:02:10 44.497N 110.413W  2.9   58 km (36 mi) ESE of  West Yellowstone, MT
2.2  2008/12/29 12:56:46 44.522N 110.365W  1.2   61 km (38 mi) ESE of  West Yellowstone, MT
1.2  2008/12/29 12:53:50 44.511N 110.377W  2.2   60 km (37 mi) ESE of  West Yellowstone, MT
1.1  2008/12/29 12:46:13 44.515N 110.386W  2.4   59 km (37 mi) ESE of  West Yellowstone, MT
0.7  2008/12/29 12:45:10 44.547N 110.362W  1.0   60 km (37 mi) ESE of  West Yellowstone, MT
1.7  2008/12/29 12:44:50 44.525N 110.373W  0.0   60 km (37 mi) ESE of  West Yellowstone, MT
1.7  2008/12/29 12:40:27 44.511N 110.379W  2.5   60 km (37 mi) ESE of  West Yellowstone, MT
2.4  2008/12/29 12:37:07 44.502N 110.366W  1.8   61 km (38 mi) ESE of  West Yellowstone, MT
1.2  2008/12/29 12:36:08 44.521N 110.385W  2.0   59 km (37 mi) ESE of  West Yellowstone, MT
1.7  2008/12/29 12:35:27 44.511N 110.385W  2.4   59 km (37 mi) ESE of  West Yellowstone, MT
2.9  2008/12/29 12:29:38 44.513N 110.381W  0.5   60 km (37 mi) ESE of  West Yellowstone, MT
2.5  2008/12/29 12:28:55 44.515N 110.381W  0.0   60 km (37 mi) ESE of  West Yellowstone, MT
1.8  2008/12/29 12:26:21 44.519N 110.370W  2.0   60 km (38 mi) ESE of  West Yellowstone, MT
1.5  2008/12/29 12:24:43 44.520N 110.342W  2.3   63 km (39 mi) ESE of  West Yellowstone, MT
3.3  2008/12/29 12:14:49 44.521N 110.369W  1.8   60 km (38 mi) ESE of  West Yellowstone, MT
1.2  2008/12/29 11:47:45 44.523N 110.371W  2.1   60 km (37 mi) ESE of  West Yellowstone, MT
1.4  2008/12/29 11:40:00 44.533N 110.359W  4.8   61 km (38 mi) ESE of  West Yellowstone, MT
1.1  2008/12/29 09:32:12 44.494N 110.360W  2.4   62 km (39 mi) ESE of  West Yellowstone, MT
1.6  2008/12/29 09:31:55 44.491N 110.360W  2.3   62 km (39 mi) ESE of  West Yellowstone, MT
1.2  2008/12/29 09:15:28 44.480N 110.363W  2.3   62 km (39 mi) ESE of  West Yellowstone, MT
1.5  2008/12/29 07:58:37 44.486N 110.354W  1.3   63 km (39 mi) ESE of  West Yellowstone, MT
1.7  2008/12/29 03:25:18 44.523N 110.371W  2.4   60 km (37 mi) ESE of  West Yellowstone, MT
1.8  2008/12/29 02:14:04 44.527N 110.376W  0.3   60 km (37 mi) ESE of  West Yellowstone, MT
2.4  2008/12/29 01:57:55 44.527N 110.378W  0.5   60 km (37 mi) ESE of  West Yellowstone, MT
2.4  2008/12/29 01:28:24 44.527N 110.382W  0.4   59 km (37 mi) ESE of  West Yellowstone, MT
2.0  2008/12/28 22:30:35 44.517N 110.372W  1.0   60 km (37 mi) ESE of  West Yellowstone, MT
2.3  2008/12/28 22:30:04 44.477N 110.349W  6.5   63 km (39 mi) ESE of  West Yellowstone, MT
1.7  2008/12/28 22:29:23 44.489N 110.354W  4.2   63 km (39 mi) ESE of  West Yellowstone, MT
2.4  2008/12/28 22:23:36 44.516N 110.361W  6.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/28 21:29:18 44.522N 110.385W  1.0   59 km (37 mi) ESE of  West Yellowstone, MT
2.8  2008/12/28 21:25:53 44.514N 110.370W  0.1   61 km (38 mi) ESE of  West Yellowstone, MT
2.6  2008/12/28 16:57:56 44.521N 110.371W  1.4   60 km (37 mi) ESE of  West Yellowstone, MT
2.0  2008/12/28 16:08:25 44.506N 110.377W  1.4   60 km (37 mi) ESE of  West Yellowstone, MT
1.8  2008/12/28 15:34:34 44.527N 110.381W  0.5   59 km (37 mi) ESE of  West Yellowstone, MT
1.9  2008/12/28 15:32:54 44.534N 110.376W  2.0   60 km (37 mi) ESE of  West Yellowstone, MT
2.2  2008/12/28 15:24:20 44.525N 110.375W  0.3   60 km (37 mi) ESE of  West Yellowstone, MT
1.5  2008/12/28 14:02:58 44.515N 110.380W  2.1   60 km (37 mi) ESE of  West Yellowstone, MT
0.8  2008/12/28 14:02:40 44.481N 110.366W  4.4   62 km (39 mi) ESE of  West Yellowstone, MT
1.6  2008/12/28 13:56:30 44.505N 110.372W  2.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/28 13:52:56 44.509N 110.385W  2.0   60 km (37 mi) ESE of  West Yellowstone, MT
1.5  2008/12/28 13:29:51 44.514N 110.381W  0.1   60 km (37 mi) ESE of  West Yellowstone, MT
1.0  2008/12/28 13:29:42 44.523N 110.378W  2.0   60 km (37 mi) ESE of  West Yellowstone, MT
1.7  2008/12/28 13:17:28 44.522N 110.377W  2.0   60 km (37 mi) ESE of  West Yellowstone, MT
1.9  2008/12/28 13:02:51 44.520N 110.376W  2.1   60 km (37 mi) ESE of  West Yellowstone, MT
0.6  2008/12/28 13:02:34 44.533N 110.352W  5.6   61 km (38 mi) ESE of  West Yellowstone, MT
3.1  2008/12/28 12:55:17 44.511N 110.353W  0.7   62 km (38 mi) ESE of  West Yellowstone, MT
1.5  2008/12/28 12:49:31 44.521N 110.372W  2.5   60 km (37 mi) ESE of  West Yellowstone, MT
3.0  2008/12/28 12:32:15 44.511N 110.356W  2.7   62 km (38 mi) ESE of  West Yellowstone, MT
1.4  2008/12/28 09:32:05 44.514N 110.373W  2.1   60 km (37 mi) ESE of  West Yellowstone, MT
1.5  2008/12/28 08:52:38 44.505N 110.374W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
1.3  2008/12/28 08:45:24 44.509N 110.362W  2.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/28 08:43:08 44.500N 110.359W  2.4   62 km (38 mi) ESE of  West Yellowstone, MT
0.9  2008/12/28 08:42:18 44.514N 110.353W  3.1   62 km (38 mi) ESE of  West Yellowstone, MT
2.0  2008/12/28 08:41:24 44.499N 110.361W  2.1   62 km (38 mi) ESE of  West Yellowstone, MT
0.8  2008/12/28 08:38:51 44.492N 110.364W  2.5   62 km (38 mi) ESE of  West Yellowstone, MT
2.8  2008/12/28 08:37:40 44.514N 110.359W  0.0   61 km (38 mi) ESE of  West Yellowstone, MT
1.6  2008/12/28 07:39:16 44.498N 110.378W  2.6   60 km (38 mi) ESE of  West Yellowstone, MT
1.5  2008/12/28 07:11:26 44.495N 110.359W  2.2   62 km (39 mi) ESE of  West Yellowstone, MT
2.0  2008/12/28 07:09:49 44.513N 110.362W  0.1   61 km (38 mi) ESE of  West Yellowstone, MT
0.2  2008/12/28 07:09:36 44.506N 110.363W  2.8   61 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/28 07:05:23 44.519N 110.381W  2.1   60 km (37 mi) ESE of  West Yellowstone, MT
1.2  2008/12/28 06:56:46 44.514N 110.364W  0.1   61 km (38 mi) ESE of  West Yellowstone, MT
0.6  2008/12/28 06:56:23 44.497N 110.375W  5.8   61 km (38 mi) ESE of  West Yellowstone, MT
1.1  2008/12/28 06:18:00 44.517N 110.366W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
1.7  2008/12/28 06:08:36 44.496N 110.365W  2.2   62 km (38 mi) ESE of  West Yellowstone, MT
1.6  2008/12/28 06:07:52 44.496N 110.365W  2.5   62 km (38 mi) ESE of  West Yellowstone, MT
1.7  2008/12/28 05:46:31 44.509N 110.362W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
1.1  2008/12/28 05:42:46 44.468N 110.359W  2.4   63 km (39 mi) ESE of  West Yellowstone, MT
1.7  2008/12/28 05:42:06 44.471N 110.367W  7.2   62 km (39 mi) ESE of  West Yellowstone, MT
2.0  2008/12/28 05:35:03 44.512N 110.362W  0.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.6  2008/12/28 05:19:59 44.515N 110.371W  2.3   60 km (38 mi) ESE of  West Yellowstone, MT
2.3  2008/12/28 05:18:53 44.478N 110.365W  1.0   62 km (39 mi) ESE of  West Yellowstone, MT
1.8  2008/12/28 05:16:49 44.476N 110.368W  6.3   62 km (39 mi) ESE of  West Yellowstone, MT
0.7  2008/12/28 05:07:15 44.518N 110.388W  1.5   59 km (37 mi) ESE of  West Yellowstone, MT
0.6  2008/12/28 05:07:02 44.479N 110.370W  2.5   62 km (38 mi) ESE of  West Yellowstone, MT
1.3  2008/12/28 05:00:24 44.475N 110.372W  2.3   62 km (38 mi) ESE of  West Yellowstone, MT
1.8  2008/12/28 04:59:50 44.504N 110.365W  2.2   61 km (38 mi) ESE of  West Yellowstone, MT
2.1  2008/12/28 04:37:53 44.515N 110.365W  0.0   61 km (38 mi) ESE of  West Yellowstone, MT
2.3  2008/12/28 04:02:25 44.484N 110.362W  0.5   62 km (39 mi) ESE of  West Yellowstone, MT
2.2  2008/12/28 03:52:06 44.479N 110.361W  6.4   62 km (39 mi) ESE of  West Yellowstone, MT
1.5  2008/12/28 03:49:46 44.482N 110.365W  2.4   62 km (39 mi) ESE of  West Yellowstone, MT
1.7  2008/12/28 03:46:08 44.510N 110.363W  1.5   61 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/28 02:51:10 44.515N 110.371W  0.4   60 km (38 mi) ESE of  West Yellowstone, MT
0.5  2008/12/28 02:50:38 44.558N 110.374W 16.3   59 km (37 mi) E   of  West Yellowstone, MT
0.5  2008/12/28 02:32:53 44.514N 110.358W  4.7   61 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/28 02:32:34 44.509N 110.364W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
1.0  2008/12/28 02:30:24 44.514N 110.381W  2.1   60 km (37 mi) ESE of  West Yellowstone, MT
1.7  2008/12/28 02:29:57 44.560N 110.475W  3.2   51 km (32 mi) ESE of  West Yellowstone, MT
2.2  2008/12/28 02:25:14 44.508N 110.364W  1.9   61 km (38 mi) ESE of  West Yellowstone, MT
3.2  2008/12/28 02:23:57 44.511N 110.361W  0.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.5  2008/12/28 02:19:26 44.509N 110.358W  2.1   62 km (38 mi) ESE of  West Yellowstone, MT
2.7  2008/12/28 02:16:57 44.510N 110.358W  2.6   62 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/28 02:14:12 44.489N 110.355W  2.2   62 km (39 mi) ESE of  West Yellowstone, MT
1.1  2008/12/28 02:13:54 44.507N 110.371W  0.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/28 02:09:18 44.492N 110.366W  2.4   62 km (38 mi) ESE of  West Yellowstone, MT
2.0  2008/12/28 02:07:52 44.500N 110.361W  0.4   62 km (38 mi) ESE of  West Yellowstone, MT
2.1  2008/12/28 02:03:18 44.486N 110.356W  2.2   63 km (39 mi) ESE of  West Yellowstone, MT
1.3  2008/12/28 01:57:55 44.501N 110.359W  2.1   62 km (38 mi) ESE of  West Yellowstone, MT
0.9  2008/12/28 01:57:40 44.498N 110.359W  3.0   62 km (38 mi) ESE of  West Yellowstone, MT
0.6  2008/12/28 01:41:59 44.507N 110.359W  2.9   62 km (38 mi) ESE of  West Yellowstone, MT
1.5  2008/12/28 01:41:33 44.509N 110.359W  2.5   62 km (38 mi) ESE of  West Yellowstone, MT
2.2  2008/12/28 01:23:41 44.506N 110.369W  0.1   61 km (38 mi) ESE of  West Yellowstone, MT
1.1  2008/12/28 01:22:46 44.499N 110.362W  2.5   62 km (38 mi) ESE of  West Yellowstone, MT
1.3  2008/12/28 01:22:24 44.499N 110.361W  2.3   62 km (38 mi) ESE of  West Yellowstone, MT
0.5  2008/12/28 01:22:11 44.524N 110.395W  2.6   58 km (36 mi) ESE of  West Yellowstone, MT
0.2  2008/12/28 01:16:05 44.503N 110.368W  5.0   61 km (38 mi) ESE of  West Yellowstone, MT
1.7  2008/12/28 01:15:33 44.499N 110.364W  2.1   62 km (38 mi) ESE of  West Yellowstone, MT
1.0  2008/12/28 01:14:58 44.501N 110.380W  5.3   60 km (37 mi) ESE of  West Yellowstone, MT
1.9  2008/12/28 00:16:13 44.513N 110.374W  2.0   60 km (37 mi) ESE of  West Yellowstone, MT
2.5  2008/12/28 00:15:18 44.495N 110.359W  0.0   62 km (39 mi) ESE of  West Yellowstone, MT
2.5  2008/12/27 23:37:41 44.492N 110.356W  2.6   62 km (39 mi) ESE of  West Yellowstone, MT
2.0  2008/12/27 23:37:20 44.497N 110.379W  2.1   60 km (38 mi) ESE of  West Yellowstone, MT
0.9  2008/12/27 23:15:20 44.506N 110.365W  2.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.0  2008/12/27 23:14:58 44.488N 110.357W  2.2   62 km (39 mi) ESE of  West Yellowstone, MT
2.2  2008/12/27 23:11:00 44.488N 110.359W  0.4   62 km (39 mi) ESE of  West Yellowstone, MT
1.3  2008/12/27 23:07:46 44.493N 110.367W  2.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/27 23:06:27 44.482N 110.370W  2.1   62 km (38 mi) ESE of  West Yellowstone, MT
2.4  2008/12/27 23:02:21 44.508N 110.364W  1.0   61 km (38 mi) ESE of  West Yellowstone, MT
1.2  2008/12/27 23:01:38 44.497N 110.376W  2.3   61 km (38 mi) ESE of  West Yellowstone, MT
2.1  2008/12/27 23:00:46 44.493N 110.377W  2.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.5  2008/12/27 22:59:31 44.510N 110.378W  1.8   60 km (37 mi) ESE of  West Yellowstone, MT
1.0  2008/12/27 22:59:03 44.498N 110.371W  3.0   61 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/27 22:52:01 44.499N 110.362W  2.1   62 km (38 mi) ESE of  West Yellowstone, MT
1.8  2008/12/27 22:44:41 44.485N 110.379W  2.2   61 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/27 22:28:49 44.498N 110.383W  2.3   60 km (37 mi) ESE of  West Yellowstone, MT
1.9  2008/12/27 22:28:05 44.485N 110.371W  2.5   61 km (38 mi) ESE of  West Yellowstone, MT
1.8  2008/12/27 22:26:14 44.484N 110.359W  2.0   62 km (39 mi) ESE of  West Yellowstone, MT
1.2  2008/12/27 22:26:03 44.470N 110.355W  5.2   63 km (39 mi) ESE of  West Yellowstone, MT
1.3  2008/12/27 22:24:39 44.489N 110.359W  4.1   62 km (39 mi) ESE of  West Yellowstone, MT
2.8  2008/12/27 22:23:54 44.489N 110.354W  2.5   63 km (39 mi) ESE of  West Yellowstone, MT
1.9  2008/12/27 22:21:16 44.480N 110.344W  4.0   64 km (40 mi) ESE of  West Yellowstone, MT
1.7  2008/12/27 22:20:10 44.494N 110.379W  2.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.6  2008/12/27 22:19:11 44.492N 110.372W  2.2   61 km (38 mi) ESE of  West Yellowstone, MT
3.9  2008/12/27 22:15:56 44.502N 110.366W  0.3   61 km (38 mi) ESE of  West Yellowstone, MT
2.7  2008/12/27 21:51:03 44.501N 110.355W  2.3   62 km (39 mi) ESE of  West Yellowstone, MT
1.8  2008/12/27 21:50:22 44.500N 110.363W  2.4   62 km (38 mi) ESE of  West Yellowstone, MT
1.3  2008/12/27 21:40:16 44.497N 110.379W  2.2   60 km (38 mi) ESE of  West Yellowstone, MT
1.4  2008/12/27 21:33:44 44.508N 110.369W  2.0   61 km (38 mi) ESE of  West Yellowstone, MT
1.6  2008/12/27 20:21:59 44.496N 110.365W  2.5   61 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/27 20:01:58 44.504N 110.367W  0.4   61 km (38 mi) ESE of  West Yellowstone, MT
1.2  2008/12/27 20:01:33 44.500N 110.370W  2.5   61 km (38 mi) ESE of  West Yellowstone, MT
1.2  2008/12/27 19:53:06 44.495N 110.368W  2.3   61 km (38 mi) ESE of  West Yellowstone, MT
2.0  2008/12/27 19:52:04 44.497N 110.362W  2.3   62 km (38 mi) ESE of  West Yellowstone, MT
2.2  2008/12/27 19:51:21 44.498N 110.362W  0.4   62 km (38 mi) ESE of  West Yellowstone, MT
0.8  2008/12/27 19:50:58 44.487N 110.365W  2.6   62 km (38 mi) ESE of  West Yellowstone, MT
1.5  2008/12/27 19:50:11 44.494N 110.362W  2.5   62 km (38 mi) ESE of  West Yellowstone, MT
1.3  2008/12/27 19:49:49 44.498N 110.359W  3.1   62 km (38 mi) ESE of  West Yellowstone, MT
1.8  2008/12/27 19:42:06 44.495N 110.362W  2.2   62 km (38 mi) ESE of  West Yellowstone, MT
1.9  2008/12/27 19:38:34 44.495N 110.360W  2.4   62 km (38 mi) ESE of  West Yellowstone, MT
2.6  2008/12/27 17:08:50 44.493N 110.354W  0.4   62 km (39 mi) ESE of  West Yellowstone, MT
3.3  2008/12/27 15:30:03 44.498N 110.358W  4.3   62 km (39 mi) ESE of  West Yellowstone, MT
1.5  2008/12/27 15:28:53 44.500N 110.368W  2.1   61 km (38 mi) ESE of  West Yellowstone, MT
1.8  2008/12/27 15:27:36 44.499N 110.367W  2.5   61 km (38 mi) ESE of  West Yellowstone, MT
1.0  2008/12/27 14:28:06 44.500N 110.362W  3.5   62 km (38 mi) ESE of  West Yellowstone, MT
0.9  2008/12/27 14:27:41 44.498N 110.364W  2.4   62 km (38 mi) ESE of  West Yellowstone, MT
1.6  2008/12/27 14:22:08 44.495N 110.372W  2.6   61 km (38 mi) ESE of  West Yellowstone, MT
2.1  2008/12/27 14:08:49 44.496N 110.370W  2.0   61 km (38 mi) ESE of  West Yellowstone, MT
3.2  2008/12/27 13:26:27 44.505N 110.364W  2.4   61 km (38 mi) ESE of  West Yellowstone, MT
3.5  2008/12/27 13:17:33 44.488N 110.357W  4.1   62 km (39 mi) ESE of  West Yellowstone, MT
2.3  2008/12/27 11:56:35 44.484N 110.367W  0.5   62 km (38 mi) ESE of  West Yellowstone, MT
3.0  2008/12/27 11:23:07 44.495N 110.364W  2.8   62 km (38 mi) ESE of  West Yellowstone, MT
2.0  2008/12/27 11:21:36 44.493N 110.362W  7.2   62 km (38 mi) ESE of  West Yellowstone, MT
1.2  2008/12/27 10:01:46 44.484N 110.373W  2.4   61 km (38 mi) ESE of  West Yellowstone, MT
2.7  2008/12/27 10:01:07 44.490N 110.366W  1.2   62 km (38 mi) ESE of  West Yellowstone, MT
2.6  2008/12/27 09:30:54 44.498N 110.362W  2.5   62 km (38 mi) ESE of  West Yellowstone, MT
Link Posted: 12/29/2008 11:26:28 AM EST
[#25]
Here is some more detailed info on what is going on in   Yellowstone.

http://www.rumormillnews.com/images/caldera_yellowstone.gif
Link Posted: 12/29/2008 11:37:43 AM EST
[#26]
Wonder if it will disrupt geysers?
Link Posted: 12/29/2008 1:43:30 PM EST
[#27]
Hit Drudge tonight.  Actually 250 small earthquakes have occurred in Yellowstone National Park since Friday.

Scientists watch unusual Yellowstone quake swarmDec 29 06:35 PM US/Eastern


CHEYENNE, Wyo. (AP) - Scientists are closely monitoring more than 250 small earthquakes that have occurred in Yellowstone National Park since Friday.

Swarms of small earthquakes happen frequently in Yellowstone. But Robert Smith, a professor of geophysics at the University of Utah, says it's very unusual to have so many over several days.

The largest tremor was Saturday and measured magnitude 3.8.

Smith says it's hard to say what might be causing the tremors but notes that Yellowstone is very geologically active. An active volcano there last erupted 70,000 years ago.
Link Posted: 12/29/2008 4:01:55 PM EST
[#28]
Quoted:


And on a time scale of hundreds, thousands, and tens of thousands of years, are we certain that this is not normal?



Well, we know that it is normal and predictable for it to explode every so often.  Just like Old Faithful, but on a longer scale of time.   We also know it is considerably overdue.  However, for it to happen during our short time on the planet would be akin to winning the Geological lottery, but in a bad way.

The record of seismic readings and GPS surveys only goes back a couple thousand years, so there is now way to know if the current activity is "normal"
Link Posted: 12/29/2008 4:57:31 PM EST
[#29]
Quoted:
Hit Drudge tonight.  Actually 250 small earthquakes have occurred in Yellowstone National Park since Friday.

Scientists watch unusual Yellowstone quake swarmDec 29 06:35 PM US/Eastern


CHEYENNE, Wyo. (AP) - Scientists are closely monitoring more than 250 small earthquakes that have occurred in Yellowstone National Park since Friday.

Swarms of small earthquakes happen frequently in Yellowstone. But Robert Smith, a professor of geophysics at the University of Utah, says it's very unusual to have so many over several days.



Ok, now that sounds a bit more interesting.
Link Posted: 12/29/2008 5:13:45 PM EST
[#30]
better start stockin up on air filters for your gas masks and BOVs
Link Posted: 12/29/2008 6:34:21 PM EST
[#31]
Animated view of the quakes. Animation

Edit: Click start
Link Posted: 12/29/2008 6:37:48 PM EST
[#32]
Quoted:
Quoted:
Hit Drudge tonight.  Actually 250 small earthquakes have occurred in Yellowstone National Park since Friday.

Scientists watch unusual Yellowstone quake swarmDec 29 06:35 PM US/Eastern


CHEYENNE, Wyo. (AP) - Scientists are closely monitoring more than 250 small earthquakes that have occurred in Yellowstone National Park since Friday.

Swarms of small earthquakes happen frequently in Yellowstone. But Robert Smith, a professor of geophysics at the University of Utah, says it's very unusual to have so many over several days.



Ok, now that sounds a bit more interesting.



when you hear that "scientists have left the immediate area and are strongly encouraging everyone to evacuate the state of Wyoming and all surrounding states", that's when things get really exciting.
Link Posted: 12/29/2008 6:39:18 PM EST
[#33]
.
Link Posted: 12/29/2008 7:28:22 PM EST
[#34]
and then it stops.
Link Posted: 12/29/2008 7:53:38 PM EST
[#35]
Quoted:
Quoted:
What's "tinfoil" about seismic activity ?

Or do you just mean the disaster theory that Yellowstone will be an epicenter for an extinction level/cataclysmic  event ?


After touring Mt St. Helen's monument I believe if Mother Nature wants to fuck our shit up, she will.[red]


+1

ain't nuthin we can do about it , fellers....



That sums it up. If Yellowstone decides to blow a good portion of the world will be fucked to some level or another. The closer you are to the that part of the country the more fucked you would be. For a whole lot of people it would be time to bend over and kiss your ass goodbye.
Link Posted: 12/29/2008 8:55:27 PM EST
[#36]
Air filtration.

Avoid running equipment in dust or ash areas.

Beyond that, you might as well point your window fans west, whatever happens will happen.

FWIW, beside the shallowing quake origins, and increasing frequency on a 24 hour basis, I've noticed two possible trends.

One, activity seems to peak between noon and midnight.

Two, deep quakes, 6 km down, seem to trigger a swarm of shallow quakes two to six hours later. Pretty much what you'd expect when a 6 km deep magma chamber, under pressure, tries to vent to the surface. Many other explanations fit too, this isn't the only one, but its logical enough I'm keeping an eye on this.

We should know a lot more by mid afternoon tomorrow (Tuesday).

Link Posted: 12/30/2008 2:18:51 AM EST
[#37]
Interesting from a distance, not so much up close, I suspect.
Link Posted: 12/30/2008 2:21:15 AM EST
[#38]
Quoted:
Quoted:
Quoted:
Hit Drudge tonight.  Actually 250 small earthquakes have occurred in Yellowstone National Park since Friday.

Scientists watch unusual Yellowstone quake swarmDec 29 06:35 PM US/Eastern


CHEYENNE, Wyo. (AP) - Scientists are closely monitoring more than 250 small earthquakes that have occurred in Yellowstone National Park since Friday.

Swarms of small earthquakes happen frequently in Yellowstone. But Robert Smith, a professor of geophysics at the University of Utah, says it's very unusual to have so many over several days.



Ok, now that sounds a bit more interesting.



when you hear that "scientists have left the immediate area and are strongly encouraging everyone to evacuate the state of Wyoming and all surrounding states", that's when things get really exciting.


Just getting out of the park would be interesting enough.
Link Posted: 12/30/2008 4:39:24 AM EST
[#39]



The record of seismic readings and GPS surveys only goes back a couple thousand years, so there is now way to know if the current activity is "normal"



Could you elaborate on this? I do not understand how we have seismic readings and GPS surveys back to around the time of Jesus Christ.


Edited: That quote didn't come out right, meant for a response in regards to a statement by "BillofRights"
Link Posted: 12/30/2008 4:52:34 AM EST
[#40]
Quoted:



The record of seismic readings and GPS surveys only goes back a couple thousand years, so there is now way to know if the current activity is "normal"



Could you elaborate on this? I do not understand how we have seismic readings and GPS surveys back to around the time of Jesus Christ.


Edited: That quote didn't come out right, meant for a response in regards to a statement by "BillofRights"



I see, and I'd be interested in hearing as well.  No ill-intent or sarcasm, just wondering if we really have reliable scientific capability to "backtrack" or somehow extrapolate 2,000+ years or so of data... my goodness the number crunching would be insane, I'd think...  

If we can/do have it, win.  If not, meh.  Life goes on.


I put my above in blue... Is the quoting function acting a bit funny today?
Link Posted: 12/30/2008 5:14:48 AM EST
[#41]
No, but I seem to be functioning a bit funny.

I am not being sarcastic either, just really curious.
Link Posted: 12/30/2008 5:28:19 AM EST
[#42]
tag
Link Posted: 12/30/2008 7:26:51 AM EST
[#43]
Quoted:
Quoted:



The record of seismic readings and GPS surveys only goes back a couple thousand years, so there is now way to know if the current activity is "normal"



Could you elaborate on this? I do not understand how we have seismic readings and GPS surveys back to around the time of Jesus Christ.


Edited: That quote didn't come out right, meant for a response in regards to a statement by "BillofRights"



I see, and I'd be interested in hearing as well.  No ill-intent or sarcasm, just wondering if we really have reliable scientific capability to "backtrack" or somehow extrapolate 2,000+ years or so of data... my goodness the number crunching would be insane, I'd think...  

If we can/do have it, win.  If not, meh.  Life goes on.


I put my above in blue... Is the quoting function acting a bit funny today?



You see, you're standing on the geologic record.  It's everywhere.  We can dissect the Earth like layers of a cake.  In an undisturbed sequence, the oldest materials are on the bottom, the youngest materials are on the top.  We can look at sedimentation rates to date the sequences, or index fossils, or carbon dating, numerous ways.

By looking at the geologic record, we have seen that the Yellowstone super volcano has erupted before (there's other layers of ash - very thick layers - below ground now).  We can examine the stratigraphy and get an estimate on how frequently it happens.  We can examine the stratigraphy even closer and look for signs of significant tectonic activity (earthquakes) both before and after the event.  

It's the best we can manage, and it's not perfect.  But it is good enough.

This earthquake swarm is unusual.  Something's definitely happening at Yellowstone.  It bears further observation before a warning could or should be issued.  It might just stop where it's at for now, or keep growing...

ETA: Yes, quotes are not working correctly.
Link Posted: 12/30/2008 7:41:21 AM EST
[#44]
Much appreciate that little bit of info there..  

I agree, something is definitely afoot over at Yellowstone.

A bit unsettling, but I'll wait until the scientists shit their pants before I follow suit. heh.
Link Posted: 12/30/2008 7:55:49 AM EST
[#45]
Quoted:
Much appreciate that little bit of info there..  

I agree, something is definitely afoot over at Yellowstone.

A bit unsettling, but I'll wait until the scientists shit their pants before I follow suit. heh.


what's interesting is areas of oregon and nevada are also experiencing "swarms" of earthquakes.
Link Posted: 12/30/2008 8:15:43 AM EST
[#46]
Even if an eruption at Yellowstone does occur, it doesn't have to be the 'super-eruption' that Discovery channel's Mega Disasters show was talking about. Granted, any kind of eruption would be bad. Just not the global killer that the Super-eruption has been made out to be....
Link Posted: 12/30/2008 8:24:28 AM EST
[#47]
Quoted:
Even if an eruption at Yellowstone does occur, it doesn't have to be the 'super-eruption' that Discovery channel's Mega Disasters show was talking about. Granted, any kind of eruption would be bad. Just not the global killer that the Super-eruption has been made out to be....


That's very true.  It could work itself up into more of a "normal" scale eruption.

If the reports about other areas experiencing swarms is true, I'd start watching other well known tectonically active areas for change - like southern California.
Link Posted: 12/30/2008 8:27:47 AM EST
[#48]
Released: December 29, 2008 05:00 PM MST

The University of Utah Seismograph Stations reports that a notable swarm of earthquakes has been underway since December 26 beneath Yellowstone Lake in Yellowstone National Park, three to six miles
south-southeast of Fishing Bridge, Wyoming. This energetic sequence of events was most intense on December 27, when the largest number of events of magnitude 3 and larger occurred.

The largest of the earthquakes was a magnitude 3.9 (revised from magnitude 3.8) at 10:15 pm MST on Dec. 27. The sequence has included nine events of magnitude 3 to 3.9 and approximately 24 of
magnitude 2 to 3 at the time of this release. A total of more than 250 events large enough to be located have occurred in this swarm. Reliable depths of the larger events are up to a few miles. Visitors and
National Park Service (NPS) employees in the Yellowstone Lake area reported feeling the largest of these earthquakes.

Earthquakes are a common occurrence in the Yellowstone National Park area, an active volcanic-tectonic area averaging 1,000 to 2,000 earthquakes a year. Yellowstone’s 10,000 geysers and hot springs
are the result of this geologic activity. A summary of Yellowstone’s volcanic history is available on the Yellowstone Volcano Observatory web site (listed below). This December 2008 earthquake sequence is
the most intense in this area for some years and is centered on the east side of the Yellowstone caldera. Scientists cannot identify any causative fault or other feature without further analysis. Seismologists
continue to monitor and analyze the data and will issue new information if the situation warrants it.

http://volcanoes.usgs.gov/yvo/

***************

The 27th was most active in 3.0+ magnitude events, but the 29th had more events of all magnitudes, per the SEIS site, with 28 quakes on the 27th, and 36 on the 29th.

There’s quite a bit of older, but useful information at the site above, including deduced mechanisms, and a paper on recent uplift. That paper is located here:

http://volcanoes.usgs.gov/yvo/publications/2007/upsanddowns.php

and includes an uplift graph from the closest GPS station to the recent swarm of quakes. Worth a look.

Also, the site notes that in November 2008, the total number of earthquakes was 166, with the greatest magnitude being 2.7.

October 2008, 46 quakes, up to M2.4 .

September 2008, 62 quakes, M2.9 .

August 2008, 146 quakes, M2.3 .

July 2008, 185 quakes, M2.5 .

June 2008, 79 quakes, M2.7 .

May 2008, 99 quakes, M2.3 .

April 2008, 70 quakes, M2.7 .

March 2008, 147 quakes, M4.2 .

February, 130 quakes, M2.4 .

January, 263 quakes, M 3.7 .

December 2007, 184 quakes, M3.6 .

The most prolific swarm of the last twelve months, outside recent activity, was a 162 event sequence over at least 12 days, beginning December 29, 2007, with the highest magnitude being 3.7

The second most prolific swarm occurred between July 28th and August 5th, 2008, with 184 events, and magnitudes ranging from 0.2 to 2.5 .

By comparison, the current swarm has experienced 250+ events so far, over three days, highest magnitude 3.9 .

My conclusions based on the data presented above, is that while earthquake swarms are not unusual in this part of the world, this particular swarm has recorded 133% more events, in half the time of previous
swarms during the last twelve months, with maximum magnitude 0.2 to 0.3 logarithmic points above previous maxima.

In addition, only one other quake has exceeded the maximum magnitude of this swarm in the last twelve months.

This activity is in close proximity to the region of record magmatic uplift rates over the 2004 to current period.

In short, this is unusual enough to pay attention to, but I see no reason to panic just yet.
Link Posted: 12/30/2008 8:52:05 AM EST
[#49]
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The record of seismic readings and GPS surveys only goes back a couple thousand years, so there is now way to know if the current activity is "normal"



Could you elaborate on this? I do not understand how we have seismic readings and GPS surveys back to around the time of Jesus Christ.

Edited: That quote didn't come out right, meant for a response in regards to a statement by "BillofRights"


I see, and I'd be interested in hearing as well.  No ill-intent or sarcasm, just wondering if we really have reliable scientific capability to "backtrack" or somehow extrapolate 2,000+ years or so of data... my goodness the number crunching would be insane, I'd think...  

If we can/do have it, win.  If not, meh.  Life goes on.

I put my above in blue... Is the quoting function acting a bit funny today?


You see, you're standing on the geologic record.  It's everywhere.  We can dissect the Earth like layers of a cake.  In an undisturbed sequence, the oldest materials are on the bottom, the youngest materials are on the top.  We can look at sedimentation rates to date the sequences, or index fossils, or carbon dating, numerous ways.

By looking at the geologic record, we have seen that the Yellowstone super volcano has erupted before (there's other layers of ash - very thick layers - below ground now).  We can examine the stratigraphy and get an estimate on how frequently it happens.  We can examine the stratigraphy even closer and look for signs of significant tectonic activity (earthquakes) both before and after the event.  

It's the best we can manage, and it's not perfect.  But it is good enough.

This earthquake swarm is unusual.  Something's definitely happening at Yellowstone.  It bears further observation before a warning could or should be issued.  It might just stop where it's at for now, or keep growing...

ETA: Yes, quotes are not working correctly.


Still, I don't believe that we have seismic and GPS surveys dating back thousands of years.

Yes, we can look rock formations, core samples, etc and come up with a pretty good idea of what has occured and how the area was formed. I don't know that we are able to determine the extent of minor seismic activity during the time of Christ.

I'd be surprised if we can definitively say that this sort of seismic activity is truly unusual. For all we know, it happens every 100 years or so, and we've only been watching for 85.

Yes, the earthquake swarms may be unprecedented in the time that we've been monitoring the area, but that is kind of like looking at what happened in the last second and assuming it was the norm for the previous hour or day.

At any rate, interesting for sure, but I don't yet see any reason for alarm.
Link Posted: 12/30/2008 9:09:37 AM EST
[#50]
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Much appreciate that little bit of info there..  

I agree, something is definitely afoot over at Yellowstone.

A bit unsettling, but I'll wait until the scientists shit their pants before I follow suit. heh.


what's interesting is areas of oregon and nevada are also experiencing "swarms" of earthquakes.[/div]


I'm not doubting you, but could you provide some links for that?  I'd like to get more information...
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