M6.1 earthquake - 53 km WSW of Port Alexander, Alaska

What happened

A magnitude 6.1 earthquake struck 53 km WSW of Port Alexander, Alaska on 4 Aug 1972, 11:38 UTC at a depth of 20 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.

The nearest town in our records is Juneau, about 255 km away in Alaska, United States.