4.0
EarthquakeModerate
M4.0 earthquake - 240 km SE of Chiniak, Alaska
1699 d ago · 21 Feb 2022, 10:28 UTC 240 km SE of Chiniak, Alaska
What happened
A magnitude 4 earthquake struck 240 km SE of Chiniak, Alaska on 21 Feb 2022, 10:28 UTC at a depth of 10 km.
Earthquakes of this size are classed as Light. Widely felt nearby; objects may shake or fall. Significant damage is unusual. This was a shallow earthquake, which tends to be felt more strongly at the surface.
Timeline
First reported by USGS
17 Oct 2026, 10:33 UTC
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