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

A micro earthquake occurred at 3:21:45 AM (PDT) on Tuesday, September 23, 2025.
The magnitude 1.0 event occurred 20 km (12 miles) NW of Ocotillo, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.0 - local magnitude (Ml)
Time Tuesday, September 23, 2025 at 3:21:45 AM (PDT)
Tuesday, September 23, 2025 at 10:21:45 (UTC)
Distance from Ocotillo, CA - 20 km (12 miles) NW (310 degrees)
Ocotillo Wells, CA - 33 km (20 miles) S (184 degrees)
Pine Valley, CA - 35 km (22 miles) E (85 degrees)
Campo, CA - 40 km (25 miles) NE (47 degrees)
Julian, CA - 49 km (30 miles) ESE (122 degrees)
Coordinates 32 deg. 50.9 min. N (32.848N), 116 deg. 9.3 min. W (116.156W)
Depth 6.40 km (4.00 miles)
Quality Good
Location Quality Parameters Nst=28, Nph=47, Dmin=8.3 km, Rmss=0.19 sec, Erho=0.25 km, Erzz=0.94 km, Gp=55 degrees
Event ID# ci40448666
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