Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California


Version #3: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 11:22:33 AM (PST) on Tuesday, December 9, 2025.
The magnitude 1.0 event occurred 4 km (2 miles) ENE (62 degrees) of Borrego Springs, CA.
The hypocentral depth is 11 km ( 7 miles).


Magnitude 1.0 - local magnitude (Ml)
Time Tuesday, December 9, 2025 at 11:22:33 AM (PST)
Tuesday, December 9, 2025 at 19:22:33 (UTC)
Distance from Borrego Springs, CA - 4 km (2 miles) ENE (62 degrees)
Ocotillo Wells, CA - 24 km (15 miles) NW (306 degrees)
Warner Springs, CA - 27 km (17 miles) E (93 degrees)
Oasis, CA - 31 km (19 miles) SW (226 degrees)
Julian, CA - 32 km (20 miles) NE (49 degrees)
Coordinates 33 deg. 16.2 min. N (33.271N), 116 deg. 20.5 min. W (116.342W)
Depth 11.44 km (7.10 miles)
Quality Good
Location Quality Parameters Nst=45, Nph=81, Dmin=6.6 km, Rmss=0.22 sec, Erho=0.22 km, Erzz=0.31 km, Gp=34 degrees
Event ID# ci41136175
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