Yellowstone National Park sits atop one of Earth’s largest volcanic systems, and right now that system is slowly reshaping the ground. Instruments show that the Yellowstone caldera is inflating into a ...

Visual observations have been a backbone of volcano research more than 2,000 years and remain fundamental to understanding ...

S trange things are afoot in Yellowstone National Park.

Few geological scenarios capture public imagination quite like a full-scale eruption of the Yellowstone supervolcano. The ...

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

Many Hawaiʻi Island communities downwind from the eruptive vents in the southwest portion of Halemaʻumaʻu Crater inside the ...

Since late 2024, Klauea has unleashed 42 episodic fountaining events, each typically lasting a day or less, separated by ...

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

Most webcams used by the USGS Hawaiian Volcano Observatory take a snapshot every few minutes to conserve bandwidth, but three webcams are currently “livestreaming” — meaning they transmit real-time ...

This stunning astronaut photo shows the natural beauty of Japan's Aso Caldera — a giant crater-like bowl containing 17 different volcanoes, leftover from major eruptions spanning over 200,000 years.