M6.6 earthquake - 276 km WSW of Adak, Alaska
31614 d ago · 27 Mar 1940, 12:31 UTC 276 km WSW of Adak, Alaska
What happened
A magnitude 6.6 earthquake struck 276 km WSW of Adak, Alaska on 27 Mar 1940, 12:31 UTC at a depth of 50 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
Community
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