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 #4: 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 earthquake occurred at 8:11:41 AM (PDT) on Monday, September 1, 2025.
The magnitude 1.0 event occurred 15 km (9 miles) W of Johannesburg, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.0 - local magnitude (Ml)
Time Monday, September 1, 2025 at 8:11:41 AM (PDT)
Monday, September 1, 2025 at 15:11:41 (UTC)
Distance from Johannesburg, CA - 15 km (9 miles) W (266 degrees)
Ridgecrest, CA - 31 km (19 miles) SSW (201 degrees)
California City, CA - 32 km (20 miles) NNE (33 degrees)
Inyokern, CA - 32 km (20 miles) S (177 degrees)
Boron, CA - 43 km (27 miles) NNW (342 degrees)
Coordinates 35 deg. 21.8 min. N (35.364N), 117 deg. 47.8 min. W (117.797W)
Depth 5.89 km (3.70 miles)
Quality Good
Location Quality Parameters Nst=39, Nph=71, Dmin=11.6 km, Rmss=0.14 sec, Erho=0.16 km, Erzz=0.53 km, Gp=36 degrees
Event ID# ci41280704
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