Can You Outrun a Supervolcano? Maybe, Study Finds [View all]

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Can you outrun a supervolcano? New evidence from an ancient eruption suggests the answer is a surprising yes.

"I wouldn't recommend anyone try to outrun a volcano, but there's a few of us that could," said Greg Valentine, a volcanologist at the University at Buffalo in New York.

By analyzing rocks trapped in volcanic ash, Valentine and his colleagues discovered the lethal ash flow spread at street speeds — about 10 to 45 mph (16 to 72 km/h). It might be hard to sustain this pace on foot, but it's certainly possible by car. [Big Blasts: History's 10 Most Destructive Volcanoes]
http://www.livescience.com/53954-how-to-outrun-a-supervolcano.html