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 4:25:28 PM (PDT) on Monday, August 4, 2025.
The magnitude 0.3 event occurred 24 km (15 miles) SSW of Ocotillo Wells, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 0.3 - local magnitude (Ml)
Time Monday, August 4, 2025 at 4:25:28 PM (PDT)
Monday, August 4, 2025 at 23:25:28 (UTC)
Distance from Ocotillo Wells, CA - 24 km (15 miles) SSW (209 degrees)
Pine Valley, CA - 30 km (18 miles) ENE (59 degrees)
Julian, CA - 35 km (22 miles) ESE (112 degrees)
Ocotillo, CA - 35 km (22 miles) NW (315 degrees)
Borrego Springs, CA - 35 km (22 miles) SSE (162 degrees)
Coordinates 32 deg. 57.5 min. N (32.958N), 116 deg. 15.4 min. W (116.256W)
Depth 5.45 km (3.40 miles)
Quality Fair
Location Quality Parameters Nst=6, Nph=9, Dmin=4.4 km, Rmss=0.09 sec, Erho=1.3 km, Erzz=0.46 km, Gp=189 degrees
Event ID# ci41253088
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