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 #6: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 10:36:01 PM (PDT) on Thursday, July 24, 2025.
The magnitude 0.8 event occurred 17 km (11 miles) WSW of Johannesburg, CA.
The hypocentral depth is 9 km ( 5 miles).


Magnitude 0.8 - local magnitude (Ml)
Time Thursday, July 24, 2025 at 10:36:01 PM (PDT)
Friday, July 25, 2025 at 5:36:01 (UTC)
Distance from Johannesburg, CA - 17 km (11 miles) WSW (248 degrees)
California City, CA - 27 km (17 miles) NE (37 degrees)
Ridgecrest, CA - 36 km (22 miles) SSW (200 degrees)
Inyokern, CA - 37 km (23 miles) S (179 degrees)
Boron, CA - 38 km (24 miles) NNW (338 degrees)
Coordinates 35 deg. 19.0 min. N (35.316N), 117 deg. 48.5 min. W (117.809W)
Depth 8.65 km (5.40 miles)
Quality Good
Location Quality Parameters Nst=19, Nph=32, Dmin=6.4 km, Rmss=0.11 sec, Erho=0.26 km, Erzz=0.46 km, Gp=94 degrees
Event ID# ci41031687
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