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

Located in the United States, one of the world’s largest volcanoes is gearing up to explode. It’s known as the Yellowstone ...

Located in the United States, one of the world's largest volcanoes is gearing up to explode. It's known as the Yellowstone ...

Scientists are monitoring a city of Chicago-sized swath of rising ground at the northern volcanic rim of the Yellowstone ...

As the Maunaulu eruption waned, Kilauea summit inflated and two brief eruptions occurred in the latter half of 1971 — one in ...

What do small earthquakes beneath Kilauea summit mean for the ongoing eruption? – Features, Volcano Update | West Hawaii ...

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

Update No. 5 at 7:53 a.m. Jan. 25, 2026: Forecasters at the National Weather Service office in Honolulu have canceled the ...

The La Garita Caldera eruption was one of the three most destructive volcanic events in Earth’s history. It released ten ...

Hawai‘i County Civil Defense reports in its post-ashfall update message that Episode 41 of the ongoing summit eruption within Halema‘uma‘u Crater in the caldera of Kīlauea volcano produced significant ...

Learn more about the past eruptions at Yellowstone National Park and how each new eruption displaced evidence of the past.