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 4:33:00 PM (PDT) on Sunday, July 20, 2025.
The magnitude 1.5 event occurred 4 km (3 miles) NW of Boron, CA.
The hypocentral depth is -0.14 km (-0.10 miles).


Magnitude 1.5 - local magnitude (Ml)
Time Sunday, July 20, 2025 at 4:33:00 PM (PDT)
Sunday, July 20, 2025 at 23:33:00 (UTC)
Distance from Boron, CA - 4 km (3 miles) NW (323 degrees)
Edwards Air Force Base, CA - 27 km (17 miles) ENE (58 degrees)
California City, CA - 30 km (19 miles) ESE (111 degrees)
Johannesburg, CA - 38 km (24 miles) S (186 degrees)
Mojave, CA - 45 km (28 miles) E (93 degrees)
Coordinates 35 deg. 1.9 min. N (35.031N), 117 deg. 40.7 min. W (117.678W)
Depth -0.14 km (-0.10 miles)
Quality Fair
Location Quality Parameters Nst=40, Nph=48, Dmin=10.8 km, Rmss=0.17 sec, Erho=0.26 km, Erzz=0.56 km, Gp=42 degrees
Event ID# ci41027159
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