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 3:06:54 AM (PST) on Saturday, December 20, 2025.
The magnitude 1.3 event occurred 15 km (9 miles) WSW of Johannesburg, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.3 - local magnitude (Ml) |
| Time | Saturday, December 20, 2025 at 3:06:54 AM (PST) Saturday, December 20, 2025 at 11:06:54 (UTC) |
| Distance from |
Johannesburg, CA - 15 km (9 miles) WSW (256 degrees) California City, CA - 30 km (18 miles) NE (36 degrees) Ridgecrest, CA - 33 km (20 miles) SSW (199 degrees) Inyokern, CA - 34 km (21 miles) S (177 degrees) Boron, CA - 40 km (25 miles) NNW (341 degrees) |
| Coordinates | 35 deg. 20.5 min. N (35.341N), 117 deg. 47.7 min. W (117.795W) |
| Depth | 6.27 km (3.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=37, Nph=66, Dmin=9.4 km, Rmss=0.17 sec, Erho=0.16 km, Erzz=0.48 km, Gp=50 degrees |
| Event ID# | ci41143663 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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