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 6:50:53 AM (PDT) on Sunday, September 21, 2025.
The magnitude 0.3 event occurred 19 km (12 miles) SW of Ocotillo Wells, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 0.3 - local magnitude (Ml)
Time Sunday, September 21, 2025 at 6:50:53 AM (PDT)
Sunday, September 21, 2025 at 13:50:53 (UTC)
Distance from Ocotillo Wells, CA - 19 km (12 miles) SW (230 degrees)
Borrego Springs, CA - 26 km (16 miles) SSE (163 degrees)
Julian, CA - 29 km (18 miles) E (100 degrees)
Pine Valley, CA - 32 km (20 miles) NE (43 degrees)
Warner Springs, CA - 42 km (26 miles) SE (131 degrees)
Coordinates 33 deg. 1.9 min. N (33.032N), 116 deg. 17.5 min. W (116.292W)
Depth 6.80 km (4.20 miles)
Quality Good
Location Quality Parameters Nst=20, Nph=35, Dmin=8.6 km, Rmss=0.2 sec, Erho=0.3 km, Erzz=0.75 km, Gp=56 degrees
Event ID# ci40447530
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