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

A micro earthquake occurred at 2:25:55 AM (PDT) on Sunday, September 21, 2025.
The magnitude 1.8 event occurred 10 km (6 miles) NNE (15 degrees) of Ocotillo Wells, CA.
The hypocentral depth is 10 km ( 6 miles).


Magnitude 1.8 - local magnitude (Ml)
Time Sunday, September 21, 2025 at 2:25:55 AM (PDT)
Sunday, September 21, 2025 at 9:25:55 (UTC)
Distance from Ocotillo Wells, CA - 10 km (6 miles) NNE (15 degrees)
Salton City, CA - 16 km (10 miles) WSW (241 degrees)
Borrego Springs, CA - 25 km (16 miles) E (96 degrees)
Oasis, CA - 26 km (16 miles) S (181 degrees)
North Shore, CA - 36 km (23 miles) SSW (205 degrees)
Coordinates 33 deg. 13.8 min. N (33.231N), 116 deg. 6.2 min. W (116.103W)
Depth 9.93 km (6.20 miles)
Quality Good
Location Quality Parameters Nst=76, Nph=140, Dmin=10.3 km, Rmss=0.18 sec, Erho=0.12 km, Erzz=0.39 km, Gp=32 degrees
Event ID# ci40447466
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