YELLOWSTONE NATIONAL PARK –
The world’s authority on Yellowstone’s Super Volcano says it’s more than twice as big as scientists once thought. Does that mean it’s more likely to blow up soon? Penny Preston found Dr. Robert Smith at his home near Grand Teton, and found the answer.
Millions of people visit Yellowstone each year to see its geysers, fumeroles, hot springs, and mud pots. It’s the largest concentration of thermal features in the world. The park sits on top of the world’s largest active volcano. The Super Volcano. Its most recent eruption was more than 600,000 years ago. All that remains is the top, or caldera.
When you come into the Park they’ll give you a map and it has an overlay of the caldera. It’s huge.
The scientist who knows more about the Super Volcano than anyone, Dr. Robert Smith of the University of Utah, said, “Anytime you come to Yellowstone you have to drive uphill. And the reason is this giant plume of magma, is very hot, therefore it’s bullient, low density and it just lifts the surface up.”
Dr. Smith has been studying Yellowstone’s earthquakes and it’s Super Volcanos for almost sixty years.
He pointed out, “And these giant eruptions, supervolcanos if you wish, probably last many, many months, maybe even years.”
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