"Kablooey!" That's the word U.S. Geological Survey volcanic experts used to describe a muddy eruption at Black Diamond Pool in Yellowstone National Park on Saturday morning. Video shared by the USGS ...

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It’s the quiet ones you have to watch out for. Contrary to popular belief, it’s not the big-name volcanoes like Yellowstone and Mount Etna in Sicily that pose the greatest threat. A UK volcanologist ...

A new thermal vent spewing steam in the air at Yellowstone National Park is gaining attention, mainly because it's visible from a road rather than any significant change in the park famous for its ...

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 ...

Beneath the geysers and steaming ground of Yellowstone National Park lies one of the most studied, yet still elusive, volcanic systems on Earth. Unlike most volcanoes that form along shifting tectonic ...

Yellowstone's geysers and hot springs draw in over 4 million visitors each year, according to the National Park Service. They flock there despite (or maybe because of) the bizarre Yellowstone National ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the ...

A new study suggests Yellowstone is not powered by a deep vertical plume, as long believed, but by a broad, slow-moving flow of hot rock beneath North America. This shift could change how scientists ...

What is a super eruption and how did they create the geology of Yellowstone? Where is the world's largest, most explosive, and most unusual volcano? It's Yellowstone National Park. The Yellowstone ...