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6.3
EarthquakeMajorPAGER: green

M6.3 earthquake - 97 km SW of Adak, Alaska

2976 d ago · 23 Aug 2018, 03:35 UTC 97 km SW 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 6.3 earthquake struck 97 km SW of Adak, Alaska on 23 Aug 2018, 03:35 UTC at a depth of 20 km.

Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was a shallow earthquake, which tends to be felt more strongly at the surface.

Timeline

  1. First reported by USGS

    16 Oct 2026, 20:46 UTC

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