Posted: 1/12/2009 6:36:14 PM EDT
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If a Mt St. Helens x 5 eruption occurs at Yellowstone, is there any predictions about how much ash the eastern US might get. I know if the supervolcano maxes out, it is going to be ugly anyway. The Mt Pinatubo volcano let out a lot of ash near Clark Field in the Philippines, but I never heard how far out to sea it went.
RS |
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i think this is what you are looking for?
http://www.earthmountainview.com/yellowstone/YellowstoneFalloutAshBed.gif |
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i think this is what you are looking for? http://www.earthmountainview.com/yellowstone/YellowstoneFalloutAshBed.gif I've been four wheeling out there in the Bishop volcano areas. You wouldn't think that SoCal has volcanoes but sure as heck they do. One of the access roads parallels the lava flow - which is 15-25 feet thick in some places where it stopped and much deeper closer to the center. The volcanoes out here are low profile rather than the classic cone type. |
| Yellowstone could erupt in a number of different manners. All the way from farting out a little ash to blowing apart the western US. There is no way to really know what is going to happen until it occurs. No one thought Mt St Helens was going to erupt like it did, either. |
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If a Mt St. Helens x 5 x 100 eruption occurs at Yellowstone, is there any predictions about how much ash the eastern US might get. I know if the supervolcano maxes out, it is going to be ugly anyway. The Mt Pinatubo volcano let out a lot of ash near Clark Field in the Philippines, but I never heard how far out to sea it went. RS More than five times Mt. St. Helens. Waaay more. I don't have an exact number so 100 put in for dramatic effect 
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i'd like to mention that it wasn't the ash on the ground that impacted most volcano vicims but the ash in the air....80000 vertical ft in 15 minutes, covered the US in 3 days world in 15 days, lowered worldwide temp by 0.1C,
ash depth: 10in at 10 miles 1 inch at 60 miles .5 inch at 300 miles |
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i think this is what you are looking for? http://www.earthmountainview.com/yellowstone/YellowstoneFalloutAshBed.gif this is a map of the super volcanoes ash spread. if, as the OP asked, it was st. helens x5, there wouldn't be anywhere near this much ash. for comparison, look at pinatubo, which ejected 10 times as much material (10 cubic kilometers) as st. helens. global temperature dropped .9 deg f. spread of the ash cloud: The ash cloud from the volcano covered an area of some 125,000 km² (50,000 mi²), bringing total darkness to much of central Luzon. Almost all of the island received some ashfall, which formed a heavy, rain-saturated snow-like blanket. Tephra fell over most of the South China Sea and ashfall was recorded as far away as Vietnam, Cambodia and Malaysia. link welcome to the site, btw, lowboy01. |
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Quoted:
If a Mt St. Helens x 5 x 100 eruption occurs at Yellowstone, is there any predictions about how much ash the eastern US might get. I know if the supervolcano maxes out, it is going to be ugly anyway. The Mt Pinatubo volcano let out a lot of ash near Clark Field in the Philippines, but I never heard how far out to sea it went. RS More than five times Mt. St. Helens. Waaay more. I don't have an exact number so 100 put in for dramatic effect actually its somewhere between 1,000 and 2,500 times or larger.... last major eruption was something on the order of 1000 CUBIC KILOMETERS of ash.. |
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i think this is what you are looking for? http://www.earthmountainview.com/yellowstone/YellowstoneFalloutAshBed.gif Woo hoo, im clear in north carassee....or is it north tennolina ? |
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They say a full blown erpution of Yellowstone could lower global temps a full 5 degrees.
Your talking Mini-Ice age stuff there. The disruption of the food supply grown in North America would be responsible for a world wide famine, not too mention as temps cool the earth, less food will be grown on all of earth. Species would go extinct, the human race would take a huge hit, probably survive as a species, but, could lose 1/2 to 3/4 of current world populations within one generation. That's just the short version. The Yellowstone thing is BIG. It has tremendous potential for destruction. And you can't run from it. Well, you could go to a place like Australia, but chances are you could starve there, just as easily as here, as food became scarce. I don't what would be worse, a direct asteroid hit, or a full-on yellowstone eruption. I guess the size of the asteroid would determine that. |
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I went through a large eruption in AK in 1989. MT Redoubt blew. It disrupted all aviation for weeks. It left 3 inches of ash on our cars and made life terrible. The silky fine dust from hell will clog your lungs most ricky tick. I supplied surgical mask to all the troops in the field that were held up in the aviation hangers.
This was small compared to a mega eruption and still jacked stuff up. Nothing with a turbine engine could fly for 3 weeks. Hell I earned an MSM for Army service but that was my most proud moment helping all those stranded soldiers and keeping their lungs safe. Bob ETA: Mount Redoubt erupted in 1902, 1966 and 1989. The eruption in 1989 spewed volcanic ash to a height of 14,000 m (45,000 ft) and managed to catch KLM Royal Dutch Airlines flight 867, a Boeing 747 aircraft, in its plume (the flight landed safely at Anchorage). The ash covered an area of about 20,000 km² (7,700 sq. miles). The 1989 eruption is also notable for being the first ever volcanic eruption to be successfully predicted by the method of long-period seismic events developed by Swiss/American volcanologist Bernard Chouet.[5 |
