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USGS · REPORTED EARTHQUAKE

M 1.8 · 13 km W of Petrolia, CA

Observed . Review status: automatic.

MAGNITUDE
1.8 md
DEPTH
8.6 km
LATITUDE
40.3132°
LONGITUDE
-124.4382°

Source & provenance

Source identifier: usgs:nc75439527. Source revised 21 Sep 2026, 22:22 UTC. The latest retained record was collected 21 Sep 2026, 22:25 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
21 Sep 2026, 22:25 UTCrevised1.821 Sep 2026, 22:22 UTC
21 Sep 2026, 20:31 UTCrevised1.821 Sep 2026, 20:27 UTC
21 Sep 2026, 19:45 UTCcreated1.821 Sep 2026, 19:41 UTC

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