Alaska Volcano. Image via Openverse. The Yellowstone Caldera is a volcanic caldera and supervolcano located in Yellowstone National Park in the Western United States. The caldera measures ...

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“The Yellowstone system is one that’s been stagnant for a long time.” The volcano’s largest eruption, which earned it the title of a supervolcano, occurred 2.1 million years ago.

Scientists uncover why "stealth" volcanoes stay silent until eruption Veniaminof, Alaska, has frequent unexpected eruptions -- modeling how they happen could help us protect people from unexpected ...

On the night of May 31 , an eruption from the Black Diamond Pool in Yellowstone National Park shot up about 20 feet, according to the Yellowstone Volcano Observatory.

MORE: Hawaii's Kilauea volcano shoots lava 1,000 feet in the air in latest eruption Episode 26 was preceded by small, sporadic spattering and lava overflows, according to the USGS.

Last week, an eruption from the Black Diamond Pool in Yellowstone National Park shot up about 20 feet, according to the Yellowstone Volcano Observatory.