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 4:19:01 PM (PST) on Monday, November 3, 2025.
The magnitude 1.7 event (a probable quarry explosion) occurred 4 km (3 miles) NNW of Boron, CA.
The hypocentral depth is -1 km (-0.50 miles).
| Magnitude | 1.7 - local magnitude (Ml) |
| Time | Monday, November 3, 2025 at 4:19:01 PM (PST) Tuesday, November 4, 2025 at 0:19:01 (UTC) |
| Distance from |
Boron, CA - 4 km (3 miles) NNW (334 degrees) Edwards Air Force Base, CA - 28 km (17 miles) ENE (59 degrees) California City, CA - 31 km (19 miles) ESE (110 degrees) Johannesburg, CA - 38 km (24 miles) S (185 degrees) Mojave, CA - 46 km (29 miles) E (93 degrees) |
| Coordinates | 35 deg. 1.9 min. N (35.032N), 117 deg. 40.2 min. W (117.669W) |
| Depth | -0.80 km (-0.50 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=36, Nph=36, Dmin=11.1 km, Rmss=0.26 sec, Erho=0.51 km, Erzz=31.61 km, Gp=83 degrees |
| Event ID# | ci40480730 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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