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M4.7 earthquake - 142 km S of Akhiok, Alaska

Name: M4.7 earthquake - 142 km S of Akhiok, Alaska
Start: 2021-07-30T22:11:41.221+00:00
Location: 142 km S of Akhiok, Alaska

1905 d ago · 30 Jul 2021, 22:11 UTC 142 km S of Akhiok, 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 4.7 earthquake struck 142 km S of Akhiok, Alaska on 30 Jul 2021, 22:11 UTC at a depth of 12 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, 10:19 UTC

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