M6.4 earthquake - 49 km SW of Attu Station, Alaska

What happened

A magnitude 6.4 earthquake struck 49 km SW of Attu Station, Alaska on 24 Aug 1956, 04:27 UTC at a depth of 21 km.

Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was a shallow earthquake, which tends to be felt more strongly at the surface.