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 11:29:11 AM (PDT) on Friday, August 1, 2025.
The magnitude 1.9 event occurred 7 km (4 miles) NE (41 degrees) of Lake Henshaw, CA.
The hypocentral depth is 18 km (11 miles).


Magnitude 1.9 - local magnitude (Ml)
Time Friday, August 1, 2025 at 11:29:11 AM (PDT)
Friday, August 1, 2025 at 18:29:11 (UTC)
Distance from Lake Henshaw, CA - 7 km (4 miles) NE (41 degrees)
Warner Springs, CA - 7 km (5 miles) W (277 degrees)
Palomar Observatory, CA - 16 km (10 miles) ESE (117 degrees)
Aguanga, CA - 22 km (14 miles) SE (140 degrees)
Julian, CA - 26 km (16 miles) NNW (336 degrees)
Coordinates 33 deg. 17.4 min. N (33.291N), 116 deg. 42.8 min. W (116.713W)
Depth 18.07 km (11.20 miles)
Quality Excellent
Location Quality Parameters Nst=17, Nph=27, Dmin=7.4 km, Rmss=0.13 sec, Erho=0.3 km, Erzz=0.56 km, Gp=81 degrees
Event ID# ci41250776
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