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

Large lava fountains erupted from the north and south vents Jan. 24 within Halemaʻumaʻu Crater — reaching heights of at least ...

Volcano Watch” is a weekly article and activity update written by US Geological Survey Hawaiian Volcano Observatory scientists and affiliates. Large lava fountains streamed from both the north and ...

Hawaii's Kilauea volcano has erupted once more, captivating the attention of both scientists and the public alike. On Monday, the U.S. Geological Survey's Hawaiian Volcano Observatory reported that ...

The U.S. Geological Survey's Hawaiian Volcano Observatory (HVO) website is currently offline, raising concerns among the public and researchers alike. However, officials have confirmed that this ...

Yellowstone’s restless ground is on the move again. Since July 2025, instruments on the park’s north rim have recorded ...

Seeing a volcano with my own eyes is a total bucket list dream, but seeing a volcano that's experiencing active volcanic ...

Scientists predict imminent lava fountaining at Kīlauea's summit, with seismic activity and observatory monitoring indicating ...

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 ...

Since 2000, specialists at the National Museum of Natural History have produced the world’s foremost report on active volcanoes Sally Sennert Did you know that there are between 40 and 50 volcanoes ...

Residents and visitors alike have been watching episodic lava fountains in Halema‘uma‘u at the summit of Kilauea since late December 2024. While beautiful and safe to view, this activity has left ...