User Panel
User Panel
User Panel
|
Posted: 7/2/2002 5:40:20 AM EDT
[#1]
It is little known that lying underneath one of America's areas of outstanding natural beauty - Yellowstone Park - is one of the largest super volcanoes in the world. Scientists have revealed that it has been on a regular eruption cycle of 600,000 years. The last eruption was 640,000 years ago…so the next is overdue. And the sleeping giant is breathing: volcanologists have been tracking the movement of magma under the park and have calculated that in parts of Yellowstone the ground has risen over seventy centimeters this century. Is this just the harmless movement of lava, flowing from one part of the reservoir to another? Or does it presage something much more sinister, a pressurized build-up of molten lava? Scientists have very few answers, but they do know that the impact of a Yellowstone eruption is terrifying to comprehend. Huge areas of the USA would be destroyed, the US economy would probably collapse, and thousands might die. And it would devastate the planet. Climatologists now know that Toba blasted so much ash and sulphur dioxide into the stratosphere that it blocked out the sun, causing the Earth's temperature to plummet. Some geneticists now believe that this had a catastrophic effect on human life, possibly reducing the population on Earth to just a few thousand people. Mankind was pushed to the edge of extinction… and it could happen again." [img]http://www.bbc.co.uk/science/horizon/arcpictures/volcanoes/lake_smoking.jpg[/img] [img]http://www.bbc.co.uk/science/horizon/arcpictures/volcanoes/volcano_animation.gif[/img] Heres a good example of a natural disaster for SHTF. Yellowstone National Park is a huge Super Volcano. What would be left of the North Western hemisphere of America if this happened ? I think we would be toast! I'll look for some more pic's and post them soon. |
|
|
|
Posted: 7/2/2002 5:48:39 AM EDT
[#2]
So are you saying I need to buy more ammunition?
Damn. Not much we can do about that. |
|
|
|
Posted: 7/2/2002 5:56:11 AM EDT
[#3]
Quoted: So are you saying I need to buy more ammunition? Damn. Not much we can do about that. Nope, we can pretty much kiss our ass good bye! |
|
|
|
Posted: 7/2/2002 6:00:57 AM EDT
[#4]
[img]http://www.tmgnow.com/IMAGES/colima.jpg[/img]
[img]http://www.tmgnow.com/IMAGES/pichanichaA.jpeg[/img] [b]Possible Pole-Shift Mechanism [/b] Pole shift is generally believed to be due to the gradual redistribution of mass in outer Earth's mantle and the crust. Our planet is most stable when its most massive parts are farthest from its spin axis; that is, on the equator. If mass redistribution were to occur somewhere on an otherwise uniform Earth, the planet would reorient itself so that the mass concentration would move to the equator. Over the past century, the north pole moved about 33 feet toward eastern Canada. Most geophysicists believe the movement is due to true polar wander (TPW), or a shift of the Earth's entire mantle and crust relative to Earth's core. Think of Earth’s spin axis being fixed relative to the stars and the crust and mantle slowly moving like the skin and flesh of a peach over its pit. If we observe the point (pole) where the spin-axis meets Earth’s surface, the pole will appear to shift if the crust and mantle move horizontally beneath it. This is pole shift of the TPW type. The other type of pole shift, not considered here, involves the movement of the Earth's spin axis relative to fixed stars.. V. Courtillot and J. Besse wrote a provocative paper on TPW in 1987. They proposed that the emission of hot thermal currents of material in the boundary layer between Earth’s core and mantle leads to increases in mantle convection, to mass anomalies near Earth’s surface, and, ultimately, to true polar wander. I’ll assume here that the scientists’ “hot thermal currents” are equivalent to the “upheavals in the interior of the Earth”. |
|
|
|
Posted: 7/2/2002 6:09:05 AM EDT
[#5]
Yes, there is a threat from the giant caldera volcano at Yellowstone, but how close is the volcano to erupting? Who can say for sure? Long term indicators are reportedly on the rise, but certain critical indicators of an imminent eruption are not present yet.
FYI, another giant caldera is the Long Valley Caldera in and around Lake Tahoe on the California/Nevada border. The Lake Tahoe valley is actually the volcano. If you stand in the middle of the valley (18 miles wide) and look around, you are looking at the broad rim of the ancient volcano. The mountain ranges are the rim. This caldera was formed about 760,000 years ago in a violent volcanic eruption that blew out 150 CUBIC MILES of magma (molten rock) from beneath the Earth's surface. There has been some seismic and geological activity in the last few years, including the venting of CO2 gas and the ever present earthquakes. Most geologists believe that these volcanoes will blow again...but that it will be "small" eruptions venting pressure and not the cataclysmic blasts like the one that occurred so long ago. On the other hand...if it did blow...and California disappeared...then maybe that isn't such a bad deal after all? [;D] |
|
|
|
Posted: 7/2/2002 6:18:42 AM EDT
[#6]
There was quite a bit of discussion of the Yellowstone "greatest nightmare of our time" in this thread:
[url]http://www.ar15.com/forums/topic.html?id=114827[/url] P.S.: what's a "titlewave"? And isn't a "sunami" raw tuna on a little roll of rice?? [:p] |
|
|
|
Posted: 7/2/2002 6:27:03 AM EDT
[#7]
No offense to those of you living in the PRK, but I would like to see it fall off into the ocean. At least LA and SF (and all the 'burbs around them). Next would be New Joisy followed by Madison WI.
If I could control the weather, natural disasters, that's how I would do it. |
|
|
|
Posted: 7/2/2002 10:16:21 AM EDT
[#8]
Quoted: No offense to those of you living in the PRK, but I would like to see it fall off into the ocean. At least LA and SF (and all the 'burbs around them). We would be able to rid ourselves of 1/3 of the anti-gun demo's and illegal aliens. I could be a good thing. |
|
|
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.
