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USGS · REPORTED EARTHQUAKE

M 3.5 · 20 km WSW of Petrolia, CA

Observed . Review status: reviewed.

MAGNITUDE
3.5 mw
DEPTH
20.2 km
LATITUDE
40.2853°
LONGITUDE
-124.5187°

Source & provenance

Source identifier: usgs:nc75436587. Source revised 16 Sep 2026, 20:27 UTC. The latest retained record was collected 16 Sep 2026, 20:30 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
16 Sep 2026, 20:30 UTCrevised3.516 Sep 2026, 20:27 UTC
16 Sep 2026, 19:36 UTCrevised3.516 Sep 2026, 19:32 UTC
16 Sep 2026, 19:30 UTCrevised3.516 Sep 2026, 19:27 UTC
16 Sep 2026, 19:25 UTCrevised3.516 Sep 2026, 19:22 UTC
16 Sep 2026, 19:10 UTCrevised3.516 Sep 2026, 19:05 UTC
16 Sep 2026, 19:05 UTCrevised3.516 Sep 2026, 19:02 UTC
16 Sep 2026, 18:50 UTCrevised3.516 Sep 2026, 18:45 UTC
16 Sep 2026, 18:35 UTCrevised3.516 Sep 2026, 18:34 UTC
16 Sep 2026, 17:32 UTCrevised3.516 Sep 2026, 17:26 UTC
16 Sep 2026, 17:20 UTCrevised3.516 Sep 2026, 17:19 UTC
16 Sep 2026, 17:16 UTCrevised3.516 Sep 2026, 17:14 UTC
16 Sep 2026, 16:55 UTCrevised3.716 Sep 2026, 16:50 UTC
16 Sep 2026, 16:03 UTCrevised3.716 Sep 2026, 15:55 UTC
16 Sep 2026, 15:46 UTCrevised3.716 Sep 2026, 15:42 UTC
16 Sep 2026, 15:40 UTCrevised3.716 Sep 2026, 15:38 UTC
16 Sep 2026, 15:35 UTCrevised3.716 Sep 2026, 15:34 UTC
16 Sep 2026, 15:31 UTCrevised3.716 Sep 2026, 15:27 UTC
16 Sep 2026, 15:15 UTCrevised3.716 Sep 2026, 15:12 UTC
16 Sep 2026, 15:11 UTCrevised3.716 Sep 2026, 15:08 UTC
16 Sep 2026, 15:06 UTCrevised3.716 Sep 2026, 15:04 UTC

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