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 11:38:38 AM (PDT) on Tuesday, October 21, 2025.
The magnitude 1.0 event occurred 7 km (4 miles) WSW of Anza, CA.
The hypocentral depth is 3 km ( 2 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Tuesday, October 21, 2025 at 11:38:38 AM (PDT) Tuesday, October 21, 2025 at 18:38:38 (UTC) |
| Distance from |
Anza, CA - 7 km (4 miles) WSW (239 degrees) Aguanga, CA - 15 km (9 miles) NE (53 degrees) Palomar Observatory, CA - 22 km (14 miles) NNE (32 degrees) Idyllwild, CA - 24 km (15 miles) S (184 degrees) Warner Springs, CA - 29 km (18 miles) NNW (340 degrees) |
| Coordinates | 33 deg. 31.4 min. N (33.524N), 116 deg. 44.2 min. W (116.737W) |
| Depth | 2.77 km (1.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=41, Nph=71, Dmin=4.6 km, Rmss=0.18 sec, Erho=0.16 km, Erzz=0.28 km, Gp=35 degrees |
| Event ID# | ci41112351 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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