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 4:56:22 PM (PDT) on Sunday, March 23, 2025.
The magnitude 1.7 event (a probable quarry explosion) occurred 5 km (3 miles) NNW of Boron, CA.
The hypocentral depth is -1 km (-0.50 miles).


Magnitude 1.7 - local magnitude (Ml)
Time Sunday, March 23, 2025 at 4:56:22 PM (PDT)
Sunday, March 23, 2025 at 23:56:22 (UTC)
Distance from Boron, CA - 5 km (3 miles) NNW (335 degrees)
Edwards Air Force Base, CA - 28 km (17 miles) NE (56 degrees)
California City, CA - 30 km (19 miles) ESE (108 degrees)
Johannesburg, CA - 37 km (23 miles) S (186 degrees)
Mojave, CA - 45 km (28 miles) E (91 degrees)
Coordinates 35 deg. 2.6 min. N (35.043N), 117 deg. 40.5 min. W (117.674W)
Depth -0.79 km (-0.50 miles)
Quality Fair
Location Quality Parameters Nst=35, Nph=35, Dmin=12.3 km, Rmss=0.19 sec, Erho=0.38 km, Erzz=31.61 km, Gp=58 degrees
Event ID# ci40908351
Additional Information Map
Waveforms

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