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 4:42:34 AM (PST) on Monday, December 8, 2025.
The magnitude 0.4 event occurred 7 km (4 miles) WSW of Anza, CA.
The hypocentral depth is 4 km ( 3 miles).
| Magnitude | 0.4 - local magnitude (Ml) |
| Time | Monday, December 8, 2025 at 4:42:34 AM (PST) Monday, December 8, 2025 at 12:42:34 (UTC) |
| Distance from |
Anza, CA - 7 km (4 miles) WSW (244 degrees) Aguanga, CA - 15 km (10 miles) NE (51 degrees) Palomar Observatory, CA - 23 km (14 miles) NNE (31 degrees) Idyllwild, CA - 23 km (15 miles) S (184 degrees) Valle Vista, CA - 28 km (18 miles) SSE (149 degrees) |
| Coordinates | 33 deg. 31.8 min. N (33.530N), 116 deg. 44.2 min. W (116.737W) |
| Depth | 4.11 km (2.60 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=22, Nph=41, Dmin=4.0 km, Rmss=0.13 sec, Erho=0.17 km, Erzz=0.35 km, Gp=42 degrees |
| Event ID# | ci41135167 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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