S trange things are afoot in Yellowstone National Park.

When geologists study volcanic hazards or try to anticipate what a volcano may do in the future, one of their primary tools is to examine the volcano’s past behavior.

Shortly before 10 a.m. on July 23, 2024, a violent hydrothermal blast ripped through Biscuit Basin in Yellowstone, hurling mud and steam into a towering plume estimated at 400 to 600 feet high. The ...

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 ...

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

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 on social ...

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 on social ...

Valentine Geyser in the Norris Geyser Basin in Yellowstone National Park unexpectedly sprang to life again with 13 documented ...

YELLOWSTONE NATIONAL PARK — As my little family stood in the cold recently waiting for Old Faithful to erupt, during our first visit to Yellowstone, a small crowd gathered, filling most of the benches ...

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 on social ...