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

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

Volcano Watch” is a weekly article and Big Island volcanic activity update written by U.S. Geological Survey Hawaiian Volcano ...

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.

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

Episode 41 of lava fountaining to more than 1,600 feet high as part of the ongoing episodic summit eruption of Kīlauea ...

Volcano Watch” is a weekly article and activity update written by US Geological Survey Hawaiian Volcano Observatory ...

HONOLULU — One of the world’s most active volcanoes spewed lava into the air for a second straight day on Tuesday. The eruption of Kilauea volcano on Hawaii’s Big Island has stayed within the mountain ...

Lava fountaining within Kilauea’s summit caldera has stopped after just after 7 hours today. The Hawaiian Volcano Observatory said that “episode 14” of the ongoing eruption ended at 1:49 p.m. when ...

Crater Rim Drive East in Hawai‘i Volcanoes National Park has reopened following extensive cleanup after massive amounts of ashfall and volcanic rock from the latest Kīlauea eruption blanketed the ...

One of the world’s most active volcanoes erupted on Monday after a three-month hiatus, spewing bright orange lava as high as 300 feet, according to the United States Geological Survey (USGS). Kilauea ...

The eruption of Kilauea within the summit caldera resumed today just before 3 p.m. According to the Hawaiian Volcano Observatory, this marks the beginning of the fifth episode of the current eruption ...