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 1:12:32 AM (PDT) on Thursday, October 16, 2025.
The magnitude 1.4 event occurred 14 km (9 miles) W of Johannesburg, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.4 - local magnitude (Ml)
Time Thursday, October 16, 2025 at 1:12:32 AM (PDT)
Thursday, October 16, 2025 at 8:12:32 (UTC)
Distance from Johannesburg, CA - 14 km (9 miles) W (262 degrees)
California City, CA - 31 km (19 miles) NE (35 degrees)
Ridgecrest, CA - 31 km (19 miles) SSW (199 degrees)
Inyokern, CA - 32 km (20 miles) S (177 degrees)
Boron, CA - 42 km (26 miles) NNW (342 degrees)
Coordinates 35 deg. 21.3 min. N (35.355N), 117 deg. 47.4 min. W (117.791W)
Depth 5.61 km (3.50 miles)
Quality Good
Location Quality Parameters Nst=43, Nph=79, Dmin=10.9 km, Rmss=0.2 sec, Erho=0.18 km, Erzz=0.69 km, Gp=47 degrees
Event ID# ci41108879
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