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Hydrothermal explosion at Yellowstone caught on video

The explosion occurred around 10 a.m. Tuesday about two miles north of Old Faithful.

YELLOWSTONE NATIONAL PARK, Wyo — A hydrothermal explosion Tuesday morning in Yellowstone National Park sent boiling water, steam and rocks high into the sky, which then rained down on tourists who were along the Biscuit Basin Trail.

The explosion was caught on video by Vlada March as she and her family were on the boardwalk near the Black Diamond Pool.

March said her mother was hit by debris, but unharmed. The National Park Service said no injuries were reported.

The explosion damaged the Biscuit Basin boardwalk forcing park rangers to close it and the Biscuit Basin parking lot. Rangers said they did not know when the boardwalk may reopen.

The U.S. Geological Survey said hydrothermal explosions are relatively common at Yellowstone. They said there was another explosion in the Biscuit Basin area in May of 2009.

Hydrothermal explosions happen when water suddenly flashes to steam underground, the USGS said. 

The National Park Service said Tuesday's explosion does not reflect a change in Yellowstone's volcanic system. The park's data monitors showed volcanic activity remained at normal levels.

Black Diamond Pool is just over two miles north Old Faithful. Yellowstone officials said Grand Loop road remains open.

@Biscuit basin at Yellowstone national park Montana just exploded right in front of us. Boardwalk destroyed, my mom got some of the debris but everyone is safe. Unbelievable and grateful to be alive

Posted by Vlada March on Tuesday, July 23, 2024

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