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 10:46:03 AM (PDT) on Friday, August 8, 2025.
The magnitude 1.1 event occurred 17 km (11 miles) WSW of Johannesburg, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 1.1 - local magnitude (Ml)
Time Friday, August 8, 2025 at 10:46:03 AM (PDT)
Friday, August 8, 2025 at 17:46:03 (UTC)
Distance from Johannesburg, CA - 17 km (11 miles) WSW (249 degrees)
California City, CA - 26 km (16 miles) NE (36 degrees)
Ridgecrest, CA - 36 km (22 miles) SSW (200 degrees)
Inyokern, CA - 37 km (23 miles) S (180 degrees)
Boron, CA - 38 km (24 miles) NNW (337 degrees)
Coordinates 35 deg. 19.0 min. N (35.317N), 117 deg. 48.8 min. W (117.814W)
Depth 7.72 km (4.80 miles)
Quality Good
Location Quality Parameters Nst=41, Nph=68, Dmin=6.3 km, Rmss=0.2 sec, Erho=0.21 km, Erzz=0.56 km, Gp=66 degrees
Event ID# ci41256560
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