Few geological scenarios capture public imagination quite like a full-scale eruption of the Yellowstone supervolcano. The fear is understandable: three massive caldera-forming eruptions have occurred ...

S trange things are afoot in Yellowstone National Park.

The bulge first appeared in 1996 and has now returned, but Yellowstone Volcano Observatory says there's no cause for alarm.

Yellowstone National Park sits atop one of the most studied volcanic systems on Earth, and the question of what a full-scale caldera-forming eruption would do to the United States draws enormous ...

Add Yahoo as a preferred source to see more of our stories on Google. Yellowstone averages between 1,500 and 2,500 earthquakes per year. In Yellowstone National Park, a bulge the size of 279 football ...

LOS ANGELES (AP) – Scientists have spied a vast reservoir of hot, partly molten rock beneath the supervolcano at Yellowstone National Park that's big enough to fill the Grand Canyon 11 times over.

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 ...

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 ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. Yellowstone is a dynamic geologic system—the one constant is change. This is demonstrated daily ...

U of U geology professor Robert B. Smith has made a 50-year career out of studying Yellowstone. He presents a lecture on the Yellowstone Supervolcano Wednesday, March 18, at 7:30 p.m. at the Skaggs ...