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 ...

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

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

S trange things are afoot in Yellowstone National Park.

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 ...

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 ...

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 summit caldera of Kīlauea have been affected by tephra fall since the ...

JEMEZ SPRINGS — A rumble rocks the front porch of the log cabin containing the Volcano Discovery Center at the Valles Caldera National Preserve. Another volcanic eruption is beginning, but unlike the ...

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.

POZZUOLI, Italy — In Greek and Roman mythology, the Campi Flegrei volcano is depicted as the opening to the underworld. Its prehistoric eruptions blocked out the sun, turning summer into winter and ...