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 2:54:11 AM (PDT) on Sunday, July 20, 2025.
The magnitude 0.9 event occurred 18 km (11 miles) WSW of Johannesburg, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Sunday, July 20, 2025 at 2:54:11 AM (PDT)
Sunday, July 20, 2025 at 9:54:11 (UTC)
Distance from Johannesburg, CA - 18 km (11 miles) WSW (249 degrees)
California City, CA - 26 km (16 miles) NE (36 degrees)
Ridgecrest, CA - 36 km (23 miles) SSW (201 degrees)
Inyokern, CA - 37 km (23 miles) S (181 degrees)
Boron, CA - 38 km (24 miles) NNW (337 degrees)
Coordinates 35 deg. 18.9 min. N (35.316N), 117 deg. 49.1 min. W (117.818W)
Depth 7.89 km (4.90 miles)
Quality Good
Location Quality Parameters Nst=31, Nph=54, Dmin=5.9 km, Rmss=0.19 sec, Erho=0.24 km, Erzz=0.59 km, Gp=65 degrees
Event ID# ci41026847
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