Are you sure you want to know? The largest known super volcano in North America is Yellowstone National Park. It is active. All of Yellowstone Park is a volcano, the whole thing is just a huge piece of land with a monster lying underneath.
There have been three "recent" super-eruptions in the past 2.1 (or so) million years. Scientists estimate the magma pit underneath the park is roughly the same size of all of New York City. Yellowstone seems to erupt roughly every 650,000 years. The last eruption was over 650,000 years ago. Get the picture? It may not erupt for another 300,000 years;it may erupt tomorrow. We do not know.
In the past eruptions at Yellowstone, there was enough ash deposited to cover the whole United States, coast to coast. Temperatures across the world may drop roughly 30 degrees Fahrenheit. The ash would cover the Midwest, one of the 3 major farming areas of the world. The plants will die, the animals will die, then we will die. It is sequential.
There is also a Super Volcano at Long Valley, California that seems to be active. There also is one in New Mexico, which as of now, scientists are not certain is active. The one in New Mexico seems to be active (hot springs still active), and fueled by the tearing at the seam of the North American continent (our continent is tearing apart, the Western portion of our country). Yellowstone dwarfs these though in terms of size and capacity for destruction.
Now, if you really would like to get a nice dose of spooky reality, think of Lake Toba. Lake Toba is Yellowstone's big brother (or sister). It is located on Sumatra (the place where the 2004 Tsunami took place). To make it clear:Lake Toba makes Yellowstone look a little less intimidating, Lake Toba is a bigger threat.
Scientists seem to think the recent flury of seismic activity in Indonesia has re-activated Lake Toba. Lake Toba is also overdue for an eruption. There is evidence within our own genes the most recent eruption at Lake Toba (74,000 years ago) almost ended our species.
No one will be safe in the event of a Mega Eruption @ either of these sites. Even worse, there are almost certainly many undiscovered Super Volcanoes underneath the Ocean; and almost certainly are some undiscovered under land, that have yet to show themselves. Only an asteroid/comet Impact Event could be worse than one of these monsters blowing their top.
Though they cause much destruction; and they may very well cause our extinction one day, these events are essential for life. They deposit much needed minerals, and keep the Earth alive. Unfortunately for us though, we have to endure. It'd be pretty interesting to witness such an event, if only one could survive.
Cheers!
2007-12-23 11:54:51
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answer #1
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answered by ajm48786 3
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Yellowstone is most certainly an active volcano, it just isn't erupting right now. If it were not active, Old Faithful and the other geysers would not be there, and the ground would not have been pushed up one or two dozen feet by the lava dome since the East Entrance to the park was built in 1923.
2007-12-23 13:10:21
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answer #2
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answered by Boris Badenov 5
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There are no active super volcanoes, but Yellowstone National Park is sitting over a huge one that would be serious trouble for the entire world, not just the US.
It is located in the northwest corner of Wyoming, measuring about 55 kilometers (34 mi) by 72 kilometers (45 mi).
A full-scale eruption of Yellowstone could result in millions of deaths locally and catastrophic climatic effects globally.
Geologists are closely monitoring the rise and fall of the Yellowstone Plateau, which averages +/- 1.5 cm yearly, as an indication of changes in magma chamber pressure. Major eruptions of Yellowstone seem to occur about every 700,000 years (the last major eruption was the Lava Creek Tuff eruption 630,000 years ago).
2007-12-23 12:40:17
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answer #3
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answered by Anonymous
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Jesus says in the bible that the Followers of Christ will be taken before the rest of the world is destroyed.?????? Where is this in the bible?
2016-05-26 01:42:13
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answer #4
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answered by ? 3
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