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 2:34:47 AM (PDT) on Friday, August 1, 2025.
The magnitude 0.4 event occurred 25 km (15 miles) SW of Ocotillo Wells, CA.
The hypocentral depth is 9 km ( 6 miles).


Magnitude 0.4 - local magnitude (Ml)
Time Friday, August 1, 2025 at 2:34:47 AM (PDT)
Friday, August 1, 2025 at 9:34:47 (UTC)
Distance from Ocotillo Wells, CA - 25 km (15 miles) SW (222 degrees)
Pine Valley, CA - 27 km (17 miles) NE (50 degrees)
Julian, CA - 30 km (18 miles) ESE (113 degrees)
Borrego Springs, CA - 32 km (20 miles) S (169 degrees)
Ocotillo, CA - 40 km (25 miles) NW (312 degrees)
Coordinates 32 deg. 58.6 min. N (32.977N), 116 deg. 18.6 min. W (116.309W)
Depth 9.17 km (5.70 miles)
Quality Good
Location Quality Parameters Nst=22, Nph=34, Dmin=2.5 km, Rmss=0.17 sec, Erho=0.27 km, Erzz=0.6 km, Gp=95 degrees
Event ID# ci41250400
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