Tuesday, February 12, 2013

Life at threat from 'supervolcano'

At least two "piles" of rock the size of continents are crashing together as they shift at the bottom of Earth's mantle, 1,800 miles (2,900km) beneath the Pacific Ocean.

In doing so they are creating a well of partially molten rock the size of Florida, raising the prospect of a rare eruption of disastrous proportions, seismologists claim.

But the danger is "not imminent" and is likely to occur between 100 million and 200 million years from now if at all, the team from the University of Utah added.