M6.3 earthquake - 143 km E of Atka, Alaska
25396 d ago · 5 Apr 1957, 02:49 UTC 143 km E of Atka, Alaska
What happened
A magnitude 6.3 earthquake struck 143 km E of Atka, Alaska on 5 Apr 1957, 02:49 UTC at a depth of 35 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.
Timeline
First reported by USGS
16 Oct 2026, 20:46 UTC
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