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5.4
EarthquakeStrongPAGER: green

M5.4 earthquake - 94 km SSE of Adak, Alaska

575 d ago · 20 Mar 2025, 05:13 UTC 94 km SSE 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 5.4 earthquake struck 94 km SSE of Adak, Alaska on 20 Mar 2025, 05:13 UTC at a depth of 35 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

  1. First reported by USGS

    16 Oct 2026, 20:47 UTC

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