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M5.9 earthquake - 180 km WSW of Nikolski, Alaska

Name: M5.9 earthquake - 180 km WSW of Nikolski, Alaska
Start: 2018-08-25T16:50:01.35+00:00
Location: 180 km WSW of Nikolski, Alaska

2974 d ago · 25 Aug 2018, 16:50 UTC 180 km WSW of Nikolski, 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 180 km WSW of Nikolski, Alaska on 25 Aug 2018, 16:50 UTC at a depth of 23 km.

Earthquakes of this size are classed as Moderate. Can damage poorly built structures close to the epicentre. This was a shallow earthquake, which tends to be felt more strongly at the surface.

Timeline

First reported by USGS
16 Oct 2026, 20:47 UTC

Community

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