Recent Earthquakes in California and Nevada
== PRELIMINARY EVENT REPORT ==
Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California
Version #7: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro quarry occurred at 4:41:20 PM (PST) on Wednesday, November 5, 2025.
The magnitude 1.7 event (a probable quarry explosion) occurred 4 km (3 miles) NW of Boron, CA.
The hypocentral depth is -1 km (-0.50 miles).
| Magnitude | 1.7 - local magnitude (Ml) |
| Time | Wednesday, November 5, 2025 at 4:41:20 PM (PST) Thursday, November 6, 2025 at 0:41:20 (UTC) |
| Distance from |
Boron, CA - 4 km (3 miles) NW (326 degrees) Edwards Air Force Base, CA - 27 km (17 miles) ENE (58 degrees) California City, CA - 30 km (19 miles) ESE (110 degrees) Johannesburg, CA - 38 km (24 miles) S (186 degrees) Mojave, CA - 45 km (28 miles) E (93 degrees) |
| Coordinates | 35 deg. 1.9 min. N (35.032N), 117 deg. 40.6 min. W (117.676W) |
| Depth | -0.82 km (-0.50 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=30, Nph=30, Dmin=11.0 km, Rmss=0.22 sec, Erho=0.48 km, Erzz=31.61 km, Gp=83 degrees |
| Event ID# | ci40481650 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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