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

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 ...

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

The same geyser that erupted last summer in a hydrothermal explosion in Yellowstone National Park was recorded erupting again, video shows. "Small eruption from Black Diamond Pool, site of a ...

Yellowstone National Park, renowned for its geothermal features and volcanic history, is beginning to show signs of renewed activity after remaining inactive for approximately 160,000 years. Recent ...

The Steamboat geyser at Yellowstone Volcano smashed the record for the number of eruptions in a single year over 2019. In its monthly update of activity, the Yellowstone Volcano Observatory (YVO) ...

Lassen Volcanic National Park, about a four-hour drive north of San Francisco, feels like a secret getaway.

The same geyser that erupted last summer in a hydrothermal explosion along a Yellowstone National Park boardwalk was caught erupting on video again thanks to a newly-installed webcam to track the ...