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 3:00:19 AM (PDT) on Wednesday, October 15, 2025.
The magnitude 1.0 event occurred 15 km (9 miles) W of Johannesburg, CA.
The hypocentral depth is 4 km ( 2 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Wednesday, October 15, 2025 at 3:00:19 AM (PDT) Wednesday, October 15, 2025 at 10:00:19 (UTC) |
| Distance from |
Johannesburg, CA - 15 km (9 miles) W (265 degrees) California City, CA - 31 km (19 miles) NNE (33 degrees) Ridgecrest, CA - 31 km (19 miles) SSW (201 degrees) Inyokern, CA - 32 km (20 miles) S (177 degrees) Boron, CA - 42 km (26 miles) NNW (342 degrees) |
| Coordinates | 35 deg. 21.7 min. N (35.361N), 117 deg. 47.7 min. W (117.796W) |
| Depth | 4.05 km (2.50 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=36, Nph=61, Dmin=11.4 km, Rmss=0.21 sec, Erho=0.2 km, Erzz=0.62 km, Gp=48 degrees |
| Event ID# | ci41108447 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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