4.0
EarthquakeModerate
M4.0 earthquake - 41 km S of Attu Station, Alaska
3364 d ago · 1 Aug 2017, 08:28 UTC 41 km S of Attu Station, Alaska
What happened
A magnitude 4 earthquake struck 41 km S of Attu Station, Alaska on 1 Aug 2017, 08:28 UTC at a depth of 48 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, 08:41 UTC
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