When was the last time Yellowstone supervolcano erupted?
In Yellowstone National Park, in the northwest corner of Wyoming, lies the Yellowstone caldera, one of the most famous supervolcanoes on Earth. The supervolcano's last eruption was 631,000 years ago. Before then, it erupted 2.1 million and 1.3 million years ago. These eruptions were some of the…
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