A tsunami advisory was issued for Alaska's Aleutian Islands, with possible tsunami activity occurring in Shemya, Alaska, at ...

Closely monitored Barry Arm is a test case in a region where melting glaciers, steep slopes and narrow fjords set up ...

According to the Alaska Earthquake Center, the Aleutian megathrust is the primary cause of the strongest earthquakes in the region. The Aleutian megathrust is a major subduction zone fault, an area ...

ANCHORAGE, Alaska -- A powerful earthquake struck off an island in the Gulf of Alaska, prompting a tsunami threat that sent the state's residents along the southern coast and western Canada ...