M4.1 earthquake - 211 km WSW of Adak, Alaska
2065 d ago · 20 Feb 2021, 04:14 UTC 211 km WSW of Adak, Alaska
What happened
A magnitude 4.1 earthquake struck 211 km WSW of Adak, Alaska on 20 Feb 2021, 04:14 UTC at a depth of 35 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, 10:07 UTC
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