M6.9 earthquake - 167 km W of Nikolski, Alaska
25439 d ago · 21 Feb 1957, 14:30 UTC 167 km W of Nikolski, Alaska
What happened
A magnitude 6.9 earthquake struck 167 km W of Nikolski, Alaska on 21 Feb 1957, 14:30 UTC at a depth of 104 km.
Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was an intermediate-depth earthquake, so shaking is spread over a wider, gentler area.
Timeline
First reported by USGS
16 Oct 2026, 20:46 UTC
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