Yellowstone Rated High in Eruption Threat
Ohh....according to a movie that I watched recently, the last time the time "supervolcano" presently under Yellowstone National Park (roughly 250,000,000 years ago?) was about 100,000 times bigger than Mount St. Helen's in 1980.
Ohh....according to a movie that I watched recently, the last time the time "supervolcano" presently under Yellowstone National Park (roughly 250,000,000 years ago?) was about 100,000 times bigger than Mount St. Helen's in 1980.