M7.9 earthquake - 93 km NW of Attu Station, Alaska

What happened

A magnitude 7.9 earthquake struck 93 km NW of Attu Station, Alaska on 17 Dec 1929, 10:58 UTC at a depth of 20 km.

Earthquakes of this size are classed as Major. Can cause serious damage over large areas. This was a shallow earthquake, which tends to be felt more strongly at the surface.