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 #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 1:47:20 AM (PST) on Thursday, December 4, 2025.
The magnitude 0.8 event occurred 10 km (6 miles) SE of Winchester, CA.
The hypocentral depth is 12 km ( 8 miles).
| Magnitude | 0.8 - local magnitude (Ml) |
| Time | Thursday, December 4, 2025 at 1:47:20 AM (PST) Thursday, December 4, 2025 at 9:47:20 (UTC) |
| Distance from |
Winchester, CA - 10 km (6 miles) SE (138 degrees) Green Acres, CA - 12 km (7 miles) SSE (152 degrees) Hemet, CA - 12 km (8 miles) SSW (199 degrees) Menifee, CA - 15 km (10 miles) SE (128 degrees) Murrieta Hot Springs, CA - 16 km (10 miles) NE (55 degrees) |
| Coordinates | 33 deg. 38.6 min. N (33.643N), 117 deg. 0.9 min. W (117.016W) |
| Depth | 12.36 km (7.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=30, Nph=50, Dmin=0.9 km, Rmss=0.16 sec, Erho=0.23 km, Erzz=0.4 km, Gp=58 degrees |
| Event ID# | ci41132303 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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