A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park. Geologists call this type of bulge “volcanic uplift.” It’s often caused by ...
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The largest supervolcano in the US is awakening
Yellowstone has erupted three times in the past 2.1 million years, and each event buried large portions of North America under ash. The last one happened 640,000 years ago, a fact news outlets love to ...
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