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Large explosive eruptions occur in Yellowstone around once every 700,000 years, according to the U.S. Geological Survey.

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Scientists say the enormous Yellowstone supervolcano is stirring in its sleep, with concerns the subterranean monster could blow. The Yellowstone supervolcano is stirring in its sleep. Scientists say ...

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The giant supervolcano that lies under Yellowstone National Park is cooling off in the west but staying hot in the northeast.

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Source: Getty Scientists from the United States studying the Yellowstone volcano have detected movement deep in its crater. This raises fears that the sleeping giant may explode. One of the largest ...