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 is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 1:03:39 PM (PDT) on Wednesday, September 17, 2025.
The magnitude 0.9 event occurred 4 km (2 miles) WNW of Borrego Springs, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Wednesday, September 17, 2025 at 1:03:39 PM (PDT)
Wednesday, September 17, 2025 at 20:03:39 (UTC)
Distance from Borrego Springs, CA - 4 km (2 miles) WNW (282 degrees)
Warner Springs, CA - 21 km (13 miles) E (96 degrees)
Julian, CA - 27 km (17 miles) NE (41 degrees)
Ocotillo Wells, CA - 29 km (18 miles) WNW (297 degrees)
Lake Henshaw, CA - 33 km (20 miles) E (86 degrees)
Coordinates 33 deg. 15.8 min. N (33.263N), 116 deg. 24.8 min. W (116.413W)
Depth 4.68 km (2.90 miles)
Quality Good
Location Quality Parameters Nst=41, Nph=66, Dmin=0.7 km, Rmss=0.17 sec, Erho=0.16 km, Erzz=0.29 km, Gp=40 degrees
Event ID# ci40439722
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