The Alaska Volcano Observatory has issued its highest level of alert for aviation after what it says was a brief eruption of a volcano on the Aleutian Islands on Tuesday.

Three volcanoes are erupting across the Aleutian Range — Great Sitkin and Semisopochnoi in the Aleutian Islands and Pavlof Volcano on the Alaska Peninsula.

Tanaga Island west of Adak, home to Tanaga and Takawangha volcanoes, began showing increasing earthquake activity March 4. 2 Aleutian volcanoes on watch for potential eruption ...

An ongoing eruption of a remote volcano in Alaska’s Aleutian Islands produced an ash cloud so large Tuesday that warnings were sent to pilots about potentially dangerous conditions. An ash cloud ...

A seismologist from Seattle discussed recent volcanic activity across the United States. Here's what you should know.

Recent volcanic activity across the Pacific Ring of Fire has raised alarms among scientists and volcanologists, with several volcanoes experiencing heightened eruptions and seismic tremors. The Ring ...

ANCHORAGE, Alaska – A volcano on a remote island in Alaska's Aleutian chain has erupted again, prompting an aviation alert. The Alaska Volcano Observatory says the Bogoslof (BOH-goh-slawf ...

The eruptions do not pose a threat to any nearby community due to the location of the Aleutian island chain, an 800-mile stretch of islands that ring the Bering Sea.

Along a remote, roughly 800-mile stretch of Alaska's Aleutian island chain, three volcanoes are erupting at the same time, with at least two spewing low levels of ash and steam. Image: Volcanoes ...

ANCHORAGE, Alaska -- A volcano is erupting again in Alaska’s Aleutian Islands.The Alaska Volcano Observatory says a Coast Guard vessel crew was in the area of the Bogoslof volcano Friday morning ...

High-resolution satellite images show that Semisopochnoi - a volcano in Alaska's Aleutian Islands - erupted on Thursday, prompting officials to raise the alert level.