Most of the U.S. volcanoes that have been making themselves known since spring woke up a bit, shook themselves off and then ...

A volcano in Alaska that last erupted in 1867 is displaying signs of rumbling. Located roughly 140 miles southwest of Anchorage, Iliamna has been dormant for over a century. But on June 15, the Alaska ...

More than 300 tremors were recorded below Mount Rainier over the course of three days. Scientists say they were too weak for ...

Magma from the mantle finds its way to the surface, where it erupts as lava or ash and gas—sometimes in spectacular spurts, ...

Footage from an active volcano and a geological attraction have been stitched together and misrepresented online as showing ...

The U.S. Geological Survey said it and other agencies were monitoring the situation and would issue additional alerts "as ...

Mount Rainier on Tuesday experienced its largest seismic activity since 2009, with a swarm of small earthquakes detected.

The United States leads the world with 165 Holocene volcanoes, mostly in Alaska, Hawaii, and the Pacific Northwest. Active locations such as Mauna Loa, Kilauea, and Mount St. Helens indicate the ...

HILO, Hawaii (AP) — One of the world’s most active volcanoes, Kilauea on Hawaii’s Big Island, began spewing lava from the north vent Wednesday, the latest event in an ongoing ...

The United States Geological Survey (USGS) describes Kīlauea as one of the world's most active volcanoes. It has been erupting intermittently since Dec. 23, 2024, within the summit caldera in ...

Find out which volcanoes in the US are the most active. This article gives clear information about their past eruptions and current activity.

The United States ranks third, behind Indonesia and Japan, in the number of historically active volcanoes – with 161 potentially active volcanoes, according to the USGS Volcano Hazards Program.