M6.8 earthquake - 99 km SW of Atka, Alaska

What happened

A magnitude 6.8 earthquake struck 99 km SW of Atka, Alaska on 19 Mar 1957, 12:50 UTC at a depth of 15 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.