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 #3: 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 2:38:32 PM (PDT) on Monday, September 1, 2025.
The magnitude 0.9 event occurred 15 km (9 miles) W of Johannesburg, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Monday, September 1, 2025 at 2:38:32 PM (PDT)
Monday, September 1, 2025 at 21:38:32 (UTC)
Distance from Johannesburg, CA - 15 km (9 miles) W (265 degrees)
California City, CA - 31 km (19 miles) NNE (33 degrees)
Ridgecrest, CA - 31 km (19 miles) SSW (202 degrees)
Inyokern, CA - 32 km (20 miles) S (178 degrees)
Boron, CA - 43 km (26 miles) NNW (341 degrees)
Coordinates 35 deg. 21.7 min. N (35.361N), 117 deg. 48.1 min. W (117.802W)
Depth 7.10 km (4.40 miles)
Quality Good
Location Quality Parameters Nst=26, Nph=44, Dmin=11.2 km, Rmss=0.16 sec, Erho=0.23 km, Erzz=0.89 km, Gp=93 degrees
Event ID# ci41281000
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