Videos of animals appearing to flee Yellowstone National Park have gone viral, leading to speculation that the park’s infamous “supervolcano” may be about to blow. Climate website Green Matters ...

Ice-blue in color, warm in temperature and a little larger than a backyard hot tub, the pool is the newest known feature to ...

In geology, even small layers can tell big stories. But figuring out the origins of such small layers can be a challenge, ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Ninfa Bennington, geophysicist ...

“The western part of the Yellowstone caldera is waning,” said Ninfa Bennington, ... They tend to reoccur about every 600,000 to 800,000 years, according to the U.S. Geological Survey.

The caldera-forming eruptions at Yellowstone are sourced from reservoirs of rhyolitic melt.That's silica-rich magma, the volcanic equivalent of granite, sticky and viscous and slow-moving, and ...

This Yellowstone caldera is what is causing geysers to erupt. The U.S. Geological Survey says that the geological activity in the park can appear to be a sign of an impending disaster, ...

Scientists are tracking changes at the giant supervolcano that lies under Yellowstone National Park, but they say there's no need to worry at the moment. “The western part of the Yellowstone ...

"For example, the West Thumb of Yellowstone Lake is a caldera formed during an eruption 160,000 years ago, called the Tuff of Bluff Point." Such smaller eruptions could be explosive too.

United States Geological Survey (USGS) scientist Mark Stelton (left) and Kenneth Sims, a UW professor of geology and geophysics and a member of the USGS Yellowstone Volcano Observatory, examine a ...

2024 will be remembered for the well-documented explosion at Biscuit Basin. But that wasn’t the only geological activity of note that occurred in the Yellowstone region during the year.

The caldera is the enormous volcanic crater left from the last time Yellowstone experienced a giant eruption, 640,000 years ago. It covers an area about 30 by 45 miles .