A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park.

Experts have dismissed the possibility of an eruption, saying, 'It’s Yellowstone being Yellowstone.' ...

Yellowstone National Park sits atop one of Earth's most closely watched volcanic systems. The U.S. Geological Survey documented 52 earthquakes in July 2025 alone. All tremors remain classified as ...

Learn more about the past eruptions at Yellowstone National Park and how each new eruption displaced evidence of the past.

The volcanic system beneath Yellowstone National Park is one of the few places on Earth capable of an eruption so large it ...

Add Yahoo as a preferred source to see more of our stories on Google. When you think of the United States, images of sprawling cities and vast landscapes might come to mind, but not the hidden and ...

With some luck, specialized equipment, a supervolcano and a narrow hole 30 stories deep, researchers demonstrated that earthquakes shake up more than just rocks—they also boost microbe populations ...

Learn more about the rare instances when seismic and magma activity overlap in Yellowstone National Park.

Did anyone else grow up in perpetual fear of any and all natural disasters? I don’t know if it was cartoons or what, but as a ...

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 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 ...

When you think of the United States, images of sprawling cities and vast landscapes might come to mind, but not the hidden and ever-present geological threat: volcanoes. While you might associate ...