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 #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 6:56:53 AM (PDT) on Sunday, September 21, 2025.
The magnitude 1.0 event occurred 11 km (7 miles) WNW of Johannesburg, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Sunday, September 21, 2025 at 6:56:53 AM (PDT) Sunday, September 21, 2025 at 13:56:53 (UTC) |
| Distance from |
Johannesburg, CA - 11 km (7 miles) WNW (283 degrees) Ridgecrest, CA - 26 km (16 miles) SSW (195 degrees) Inyokern, CA - 29 km (18 miles) SSE (168 degrees) California City, CA - 37 km (23 miles) NE (36 degrees) Boron, CA - 45 km (28 miles) NNW (348 degrees) |
| Coordinates | 35 deg. 23.6 min. N (35.394N), 117 deg. 44.9 min. W (117.749W) |
| Depth | 5.91 km (3.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=38, Nph=69, Dmin=11.3 km, Rmss=0.13 sec, Erho=0.14 km, Erzz=0.49 km, Gp=62 degrees |
| Event ID# | ci40447538 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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