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 #3: 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 7:34:28 AM (PST) on Saturday, December 20, 2025.
The magnitude 1.3 event occurred 17 km (11 miles) WSW of Johannesburg, CA.
The hypocentral depth is 7 km ( 5 miles).
| Magnitude | 1.3 - local magnitude (Ml) |
| Time | Saturday, December 20, 2025 at 7:34:28 AM (PST) Saturday, December 20, 2025 at 15:34:28 (UTC) |
| Distance from |
Johannesburg, CA - 17 km (11 miles) WSW (243 degrees) California City, CA - 26 km (16 miles) NE (40 degrees) Boron, CA - 37 km (23 miles) NNW (337 degrees) Ridgecrest, CA - 37 km (23 miles) SSW (198 degrees) Inyokern, CA - 38 km (24 miles) S (179 degrees) |
| Coordinates | 35 deg. 18.1 min. N (35.302N), 117 deg. 48.4 min. W (117.806W) |
| Depth | 7.46 km (4.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=36, Nph=66, Dmin=5.3 km, Rmss=0.17 sec, Erho=0.19 km, Erzz=0.46 km, Gp=59 degrees |
| Event ID# | ci41143855 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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