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

A micro earthquake occurred at 2:26:33 AM (PDT) on Monday, September 29, 2025.
The magnitude 0.5 event occurred 20 km (12 miles) SW of Ocotillo Wells, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 0.5 - local magnitude (Ml)
Time Monday, September 29, 2025 at 2:26:33 AM (PDT)
Monday, September 29, 2025 at 9:26:33 (UTC)
Distance from Ocotillo Wells, CA - 20 km (12 miles) SW (230 degrees)
Borrego Springs, CA - 26 km (16 miles) SSE (163 degrees)
Julian, CA - 29 km (18 miles) E (101 degrees)
Pine Valley, CA - 32 km (20 miles) NE (43 degrees)
Warner Springs, CA - 42 km (26 miles) SE (131 degrees)
Coordinates 33 deg. 1.8 min. N (33.030N), 116 deg. 17.6 min. W (116.293W)
Depth 6.76 km (4.20 miles)
Quality Good
Location Quality Parameters Nst=35, Nph=59, Dmin=8.4 km, Rmss=0.17 sec, Erho=0.23 km, Erzz=0.56 km, Gp=129 degrees
Event ID# ci41100463
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