M4.1 earthquake - 77 km SSW of Unalaska, Alaska
1834 d ago · 9 Oct 2021, 05:59 UTC 77 km SSW of Unalaska, Alaska
What happened
A magnitude 4.1 earthquake struck 77 km SSW of Unalaska, Alaska on 9 Oct 2021, 05:59 UTC at a depth of 44 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, 10:25 UTC
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