Yellowstone Volcano

Geologists discover supervolcano

3 Feb, 2000

Several geologists tell the British Broadcasting Company how an unusual fossil discovery has led to the realization that the volcano is actually a one of the largest supervolcanoes on the planet.  The magma chamber, they report, is 40-50 km long, some 20 km wide, and about 10 km deep.  A supereruption today would cause unparalleled devastation.

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