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

A micro earthquake occurred at 4:43:56 AM (PDT) on Saturday, July 19, 2025.
The magnitude 0.9 event occurred 17 km (10 miles) WSW of Johannesburg, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Saturday, July 19, 2025 at 4:43:56 AM (PDT)
Saturday, July 19, 2025 at 11:43:56 (UTC)
Distance from Johannesburg, CA - 17 km (10 miles) WSW (248 degrees)
California City, CA - 27 km (17 miles) NE (38 degrees)
Ridgecrest, CA - 36 km (22 miles) SSW (199 degrees)
Inyokern, CA - 37 km (23 miles) S (179 degrees)
Boron, CA - 38 km (24 miles) NNW (338 degrees)
Coordinates 35 deg. 18.9 min. N (35.315N), 117 deg. 48.4 min. W (117.806W)
Depth 6.63 km (4.10 miles)
Quality Good
Location Quality Parameters Nst=35, Nph=63, Dmin=6.4 km, Rmss=0.2 sec, Erho=0.2 km, Erzz=0.48 km, Gp=86 degrees
Event ID# ci41026231
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