Recent Earthquakes in California and Nevada


== PRELIMINARY EVENT 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 quarry occurred at 12:13:17 PM (PDT) on Monday, August 11, 2025.
The magnitude 1.4 event (a probable quarry explosion) occurred 8 km (5 miles) SSW of Mojave, CA.
The hypocentral depth is -1 km (-1 miles).


Magnitude 1.4 - local magnitude (Ml)
Time Monday, August 11, 2025 at 12:13:17 PM (PDT)
Monday, August 11, 2025 at 19:13:17 (UTC)
Distance from Mojave, CA - 8 km (5 miles) SSW (193 degrees)
Rosamond, CA - 14 km (9 miles) N (349 degrees)
California City, CA - 25 km (15 miles) SW (230 degrees)
Edwards Air Force Base, CA - 26 km (16 miles) WNW (291 degrees)
Tehachapi, CA - 28 km (18 miles) SE (125 degrees)
Coordinates 34 deg. 59.1 min. N (34.985N), 118 deg. 11.6 min. W (118.193W)
Depth -0.91 km (-0.60 miles)
Quality Fair
Location Quality Parameters Nst=20, Nph=24, Dmin=12.2 km, Rmss=0.19 sec, Erho=0.33 km, Erzz=31.61 km, Gp=51 degrees
Event ID# ci41258664
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