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USGS · REPORTED EARTHQUAKE

M 4.0 · 119 km E of Chignik, Alaska

Observed . Review status: reviewed.

MAGNITUDE
4.0 ml
DEPTH
17.9 km
LATITUDE
56.1990°
LONGITUDE
-156.4880°

Source & provenance

Source identifier: usgs:aka2026shusro. Source revised 17 Sep 2026, 21:57 UTC. The latest retained record was collected 17 Sep 2026, 22:02 UTC.

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Versions retained by URSY

History starts when URSY first collects this event. Later source revisions can change reported measurements.

Collected · UTCChangeMagnitudeSource revision · UTC
17 Sep 2026, 22:02 UTCrevised4.017 Sep 2026, 21:57 UTC
15 Sep 2026, 20:50 UTCrevised4.015 Sep 2026, 20:47 UTC
15 Sep 2026, 19:21 UTCrevised4.015 Sep 2026, 19:19 UTC
15 Sep 2026, 15:04 UTCrevised4.015 Sep 2026, 15:02 UTC
15 Sep 2026, 14:46 UTCrevised4.015 Sep 2026, 14:41 UTC
15 Sep 2026, 14:40 UTCrevised4.015 Sep 2026, 14:39 UTC
15 Sep 2026, 14:35 UTCcreated4.115 Sep 2026, 14:35 UTC

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