AVO

The ice-filled caldera of Takawangha, which rises 4,753 feet out of the Bering Sea, is in the far western Aleutians, about 55 miles west of Adak. The volcano has been showing signs of unrest since Nov. 18.

Three volcanoes are currently erupting across the Aleutian Range — Great Sitkin and Semisopochnoi in the Aleutian Islands, and Pavlof Volcano on the…

Scientists have downgraded the alert level at Great Sitkin Volcano near the Aleutian Island of Adak following an eruption Tuesday night. The event took…

Scientists have downgraded the alert level for an Aleutian volcano that began showing an increase in signs of eruption and emitting harmful ash late last…

Scientists have upgraded the alert level at one of Alaska's most active volcanoes after increased volcanic unrest.Starting last week, satellites detected…

In a new study, scientists say a group of volcanic Aleutian islands could be part of a massive, single, undiscovered volcano.While scientists have been…

A magnitude-6.4 earthquake hit about 25 miles east of Nikolski Tuesday morning, and was felt by residents in Nikolski, Unalaska, and Akutan. The…

On Monday, in the middle of testing the city’s sirens, Unalaska received notification of a large earthquake southeast of Sand Point and a subsequent…

Residents of coastal Alaska, from Sand Point to Kodiak, scrambled for higher ground and motored boats into deeper water Monday afternoon after a magnitude…

Scientists have raised Pavlof Volcano's alert level, after the volcano began showing signs of restlessness. The Alaska Volcano Observatory issued an…