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 5:47:47 PM (PDT) on Monday, September 22, 2025.
The magnitude 1.1 event occurred 15 km (9 miles) WSW of Johannesburg, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.1 - local magnitude (Ml) |
| Time | Monday, September 22, 2025 at 5:47:47 PM (PDT) Tuesday, September 23, 2025 at 0:47:47 (UTC) |
| Distance from |
Johannesburg, CA - 15 km (9 miles) WSW (258 degrees) California City, CA - 30 km (19 miles) NE (36 degrees) Ridgecrest, CA - 32 km (20 miles) SSW (199 degrees) Inyokern, CA - 33 km (21 miles) S (177 degrees) Boron, CA - 41 km (25 miles) NNW (341 degrees) |
| Coordinates | 35 deg. 20.8 min. N (35.346N), 117 deg. 47.6 min. W (117.793W) |
| Depth | 6.49 km (4.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=42, Nph=78, Dmin=10.0 km, Rmss=0.18 sec, Erho=0.17 km, Erzz=0.51 km, Gp=49 degrees |
| Event ID# | ci40448426 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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