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 #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 10:36:55 PM (PST) on Thursday, December 4, 2025.
The magnitude 0.5 event occurred 14 km (9 miles) N (4 degrees) of Borrego Springs, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 0.5 - local magnitude (Ml)
Time Thursday, December 4, 2025 at 10:36:55 PM (PST)
Friday, December 5, 2025 at 6:36:55 (UTC)
Distance from Borrego Springs, CA - 14 km (9 miles) N (4 degrees)
Oasis, CA - 26 km (16 miles) WSW (250 degrees)
Warner Springs, CA - 28 km (17 miles) ENE (65 degrees)
La Quinta, CA - 31 km (19 miles) S (189 degrees)
Anza, CA - 34 km (21 miles) ESE (123 degrees)
Coordinates 33 deg. 23.1 min. N (33.386N), 116 deg. 21.8 min. W (116.363W)
Depth 4.77 km (3.00 miles)
Quality Good
Location Quality Parameters Nst=33, Nph=53, Dmin=5.6 km, Rmss=0.18 sec, Erho=0.19 km, Erzz=0.44 km, Gp=57 degrees
Event ID# ci41133023
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