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 event has been reviewed by a seismologist.
A micro earthquake occurred at 9:51:07 PM (PDT) on Tuesday, September 23, 2025.
The magnitude 1.2 event occurred 15 km (9 miles) W of Johannesburg, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.2 - local magnitude (Ml) |
| Time | Tuesday, September 23, 2025 at 9:51:07 PM (PDT) Wednesday, September 24, 2025 at 4:51:07 (UTC) |
| Distance from |
Johannesburg, CA - 15 km (9 miles) W (261 degrees) California City, CA - 31 km (19 miles) NE (35 degrees) Ridgecrest, CA - 32 km (20 miles) SSW (200 degrees) Inyokern, CA - 33 km (20 miles) S (177 degrees) Boron, CA - 41 km (26 miles) NNW (341 degrees) |
| Coordinates | 35 deg. 21.1 min. N (35.352N), 117 deg. 47.7 min. W (117.795W) |
| Depth | 6.11 km (3.80 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=40, Nph=71, Dmin=10.4 km, Rmss=0.18 sec, Erho=0.2 km, Erzz=0.6 km, Gp=66 degrees |
| Event ID# | ci40449314 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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