M8.6 earthquake - The 1946 Unimak Island, Alaska Earthquake
29418 d ago · 1 Apr 1946, 12:29 UTC The 1946 Unimak Island, Alaska Earthquake
What happened
A magnitude 8.6 earthquake struck The 1946 Unimak Island, Alaska Earthquake on 1 Apr 1946, 12:29 UTC at a depth of 15 km.
Earthquakes of this size are classed as Great. Can cause severe damage across hundreds of kilometres and may trigger tsunamis. 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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