Yellowstone Supervolcano Ready to Erupt ?


GLOBAL VOLCANISM: YELLOWSTONE ABOUT TO BLOW - SUPERVOLCANO COULD WIPE OUT MOST OF AMERICA AND SCIENTISTS FEAR IT MAY BE DUE TO ERUPT?!
Geologists had thought it took between 100,000 to 200,000 years for a supervolcano magma pool to build up enough pressure to erupt.  But the new study suggests that the giant magma bodies may only exist for a few thousand years, or even a few hundred, before exploding.  A magma reservoir six miles below Yellowstone has been rising at a record rate since 2004. The Wyoming park sits above a gigantic plume of hot and molten rock that begins at least 400 miles beneath Earth’s surface and rises to 30 miles underground, where it widens to about 300 miles across.  Blobs of magma occasionally break off from the top of the plume, and rise farther, resupplying the magma chamber beneath the Yellowstone Caldera.  Resembling the lid of a cooking pot, the caldera formed when the last super-eruption occurred 600,000 years ago.  The supervolcano has erupted a total of three times in the last 2.1 million years. Scientists believe it could be due to erupt again.  More and detail : Source.
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