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 #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro quarry occurred at 2:33:19 PM (PST) on Tuesday, December 2, 2025.
The magnitude 1.5 event (a probable quarry explosion) occurred 3 km (2 miles) ENE (67 degrees) of Rancho San Diego, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 1.5 - local magnitude (Ml) |
| Time | Tuesday, December 2, 2025 at 2:33:19 PM (PST) Tuesday, December 2, 2025 at 22:33:19 (UTC) |
| Distance from |
Rancho San Diego, CA - 3 km (2 miles) ENE (67 degrees) Jamul, CA - 5 km (3 miles) NNW (332 degrees) Bostonia, CA - 6 km (4 miles) SSE (150 degrees) El Cajon, CA - 7 km (4 miles) SE (126 degrees) Winter Gardens, CA - 9 km (5 miles) SSE (160 degrees) |
| Coordinates | 32 deg. 45.5 min. N (32.759N), 116 deg. 54.2 min. W (116.903W) |
| Depth | 6.49 km (4.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=24, Nph=39, Dmin=4.5 km, Rmss=0.16 sec, Erho=0.37 km, Erzz=0.79 km, Gp=92 degrees |
| Event ID# | ci41131175 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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