According to the Alaska Earthquake Center, the Aleutian megathrust is the primary cause of the strongest earthquakes in the region. It's a major subduction zone fault, an area where two tectonic ...

A 5.1 magnitude earthquake has struck Alaska, the U.S. Geological Survey (USGS) said. The epicenter was recorded at around 90 ...

A magnitude 4.6 earthquake has hit Alaska just miles from Mount Spurr, which has been showing signs of unrest and is at risk ...

The National Weather Service office in Juneau reported no injuries or infrastructure damage from the landslide or tsunami.

One of the strongest earthquakes ever recorded struck Russia's Far East early Wednesday, sending tsunami waves into Japan and ...

The Alaska Volcano Observatory is raising the alert level one notch for the Shishaldin Volcano on Unimak Island after recent ...

AMCHITKA ISLAND — A series of moderate to strong earthquakes that struck Alaska’s western Aleutian Islands and offshore areas Sunday were what scientists call a “swarm,” but the state’s ...

ANCHORAGE, AlaskaANCHORAGE, Alaska — A swarm of earthquakes was recorded Tuesday off Alaska’s Aleutian Islands, including the largest with a magnitude of 6.8 followed by aftershocks. There were few ...

Wednesday’s magnitude 7.3 earthquake off Alaska's Aleutian Islands chain struck in a region that has experienced a handful of powerful quakes within the last five years — including one that ...

One of the strongest earthquakes ever recorded has struck Russia’s Far East, causing tsunami waves in Japan and Alaska and ...