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M5.3 earthquake strikes 151 km WSW of Adak, Alaska

A magnitude 5.3 earthquake occurred at 10:47 UTC on 2026-09-11, centered 151 km WSW of Adak, Alaska, at a depth of 40.89 km. The event is moderate and typical for the Aleutian subduction zone; no immediate damage or tsunami threat is reported. Its significance lies in monitoring seismic activity in a region with active tectonics and potential for larger events.

USGS Earthquakes M4.5+1 day agoUSengCredibility 10%View source

Score Breakdown

Mosaic Score2.0
Confidence0.9
Significance0.1
Source credibility0.1

Intelligence Tags

Locations

Adak, Alaska

Entities

country
Source

Related signals

8 found