M5.9 earthquake - 237 km W of Adak, Alaska
414 d ago · 28 Aug 2025, 11:07 UTC 237 km W of Adak, Alaska
A tsunami flag was raised for this event. This does not mean a tsunami occurred. Always follow official tsunami warning centres and local authorities.
What happened
A magnitude 5.9 earthquake struck 237 km W of Adak, Alaska on 28 Aug 2025, 11:07 UTC at a depth of 130 km.
Earthquakes of this size are classed as Moderate. Can damage poorly built structures close to the epicentre. This was an intermediate-depth earthquake, so shaking is spread over a wider, gentler area.
Timeline
First reported by USGS
16 Oct 2026, 20:47 UTC
Community
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