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 4:27:05 PM (PDT) on Monday, August 18, 2025.
The magnitude 1.5 event occurred 4 km (3 miles) NNW of Boron, CA.
The hypocentral depth is -1 km (-0.30 miles).


Magnitude 1.5 - local magnitude (Ml)
Time Monday, August 18, 2025 at 4:27:05 PM (PDT)
Monday, August 18, 2025 at 23:27:05 (UTC)
Distance from Boron, CA - 4 km (3 miles) NNW (329 degrees)
Edwards Air Force Base, CA - 27 km (17 miles) ENE (59 degrees)
California City, CA - 30 km (19 miles) ESE (110 degrees)
Johannesburg, CA - 38 km (24 miles) S (185 degrees)
Mojave, CA - 46 km (28 miles) E (93 degrees)
Coordinates 35 deg. 1.9 min. N (35.032N), 117 deg. 40.4 min. W (117.674W)
Depth -0.56 km (-0.30 miles)
Quality Fair
Location Quality Parameters Nst=39, Nph=48, Dmin=11.0 km, Rmss=0.26 sec, Erho=0.42 km, Erzz=0.95 km, Gp=60 degrees
Event ID# ci40402322
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