Yellowstone National Park sits atop one of the most studied volcanic systems on Earth, and the question of what a full-scale ...

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 ...

While the chance for an eruption is extremely low, the supervolcano is still likely to blame. A 2025 study from the United ...

In honor of Valentine’s Day, let’s talk about a geyser in Norris Geyser Basin that came back to life in August 2025 after a 20-year hiatus – Valentine Geyser.

The fishing season will be extended this year in three of the major rivers in Yellowstone, including the Firehole River where ...

Yellowstone National Park is a place of wonder and beauty that never ceases to amaze the millions who visit each year.

Yellowstone National Park is a place of wonder and beauty that never ceases to amaze the millions who visit each year.

Deep beneath the United States, scientists have detected new movement beneath the Yellowstone Supervolcano, raising fresh concerns about one of the most dangerous geological systems on Earth. Seismic ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week’s contribution is from Michael Poland, geophysicist with the ...

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 ...