M4.0 earthquake - 161 km SW of Adak, Alaska
3252 d ago · 21 Nov 2017, 21:06 UTC 161 km SW of Adak, Alaska
What happened
A magnitude 4 earthquake struck 161 km SW of Adak, Alaska on 21 Nov 2017, 21:06 UTC at a depth of 19 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, 08:49 UTC
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