In a big eruption, Yellowstone would eject 1,000 times as much material as the 1980 Mount St. Helens eruption.
In a big eruption, Yellowstone would eject 1,000 times as much material as the 1980 Mount St. Helens eruption. POST THE WASHINGTON POST
In a big eruption, Yellowstone would eject 1,000 times as much material as the 1980 Mount St. Helens eruption. POST THE WASHINGTON POST

National

April 24, 2015 12:53 PM

Huge magma chamber spied under Yellowstone supervolcano

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