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 #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 earthquake occurred at 1:00:31 PM (PST) on Thursday, December 4, 2025.
The magnitude 1.3 event occurred 7 km (4 miles) NE (55 degrees) of Westmorland, CA.
The hypocentral depth is 13 km ( 8 miles).
| Magnitude | 1.3 - local magnitude (Ml) |
| Time | Thursday, December 4, 2025 at 1:00:31 PM (PST) Thursday, December 4, 2025 at 21:00:31 (UTC) |
| Distance from |
Westmorland, CA - 7 km (4 miles) NE (55 degrees) Calipatria, CA - 7 km (4 miles) SW (216 degrees) Brawley, CA - 11 km (7 miles) NNW (345 degrees) Niland, CA - 19 km (12 miles) SSW (192 degrees) Imperial, CA - 25 km (16 miles) N (2 degrees) |
| Coordinates | 33 deg. 4.4 min. N (33.074N), 115 deg. 33.6 min. W (115.560W) |
| Depth | 13.24 km (8.20 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=20, Nph=34, Dmin=3.8 km, Rmss=0.19 sec, Erho=0.54 km, Erzz=0.69 km, Gp=136 degrees |
| Event ID# | ci41132719 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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