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 #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 quarry occurred at 4:19:27 PM (PST) on Wednesday, November 19, 2025.
The magnitude 1.2 event (a probable quarry explosion) occurred 5 km (3 miles) NW of Boron, CA.
The hypocentral depth is -1 km (-0.50 miles).
| Magnitude | 1.2 - local magnitude (Ml) |
| Time | Wednesday, November 19, 2025 at 4:19:27 PM (PST) Thursday, November 20, 2025 at 0:19:27 (UTC) |
| Distance from |
Boron, CA - 5 km (3 miles) NW (322 degrees) Edwards Air Force Base, CA - 27 km (17 miles) ENE (57 degrees) California City, CA - 29 km (18 miles) ESE (110 degrees) Johannesburg, CA - 38 km (23 miles) S (187 degrees) Mojave, CA - 45 km (28 miles) E (92 degrees) |
| Coordinates | 35 deg. 2.2 min. N (35.036N), 117 deg. 41.1 min. W (117.685W) |
| Depth | -0.73 km (-0.50 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=23, Nph=31, Dmin=11.3 km, Rmss=0.17 sec, Erho=0.3 km, Erzz=0.59 km, Gp=82 degrees |
| Event ID# | ci41124679 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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