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 #6: 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 quarry occurred at 1:04:20 PM (PDT) on Friday, September 26, 2025.
The magnitude 1.3 event (a probable quarry explosion) occurred 11 km (7 miles) N of Victorville, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 1.3 - local magnitude (Ml)
Time Friday, September 26, 2025 at 1:04:20 PM (PDT)
Friday, September 26, 2025 at 20:04:20 (UTC)
Distance from Victorville, CA - 11 km (7 miles) N (356 degrees)
Adelanto, CA - 12 km (7 miles) ENE (60 degrees)
Mountain View Acres, CA - 16 km (10 miles) NNE (16 degrees)
Apple Valley, CA - 18 km (11 miles) NW (325 degrees)
Hesperia, CA - 23 km (14 miles) N (0 degrees)
Coordinates 34 deg. 38.1 min. N (34.635N), 117 deg. 18.0 min. W (117.300W)
Depth 7.24 km (4.50 miles)
Quality Fair
Location Quality Parameters Nst=33, Nph=45, Dmin=8.7 km, Rmss=0.3 sec, Erho=0.38 km, Erzz=1.61 km, Gp=38 degrees
Event ID# ci41098887
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