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 2:50:55 AM (PDT) on Monday, October 20, 2025.
The magnitude 0.8 event occurred 12 km (8 miles) SSE of Anza, CA.
The hypocentral depth is 10 km ( 6 miles).
| Magnitude | 0.8 - local magnitude (Ml) |
| Time | Monday, October 20, 2025 at 2:50:55 AM (PDT) Monday, October 20, 2025 at 9:50:55 (UTC) |
| Distance from |
Anza, CA - 12 km (8 miles) SSE (157 degrees) Warner Springs, CA - 19 km (12 miles) N (3 degrees) Aguanga, CA - 23 km (14 miles) E (87 degrees) Palomar Observatory, CA - 25 km (15 miles) ENE (64 degrees) Lake Henshaw, CA - 27 km (17 miles) NNE (29 degrees) |
| Coordinates | 33 deg. 27.3 min. N (33.454N), 116 deg. 37.4 min. W (116.623W) |
| Depth | 9.85 km (6.10 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=48, Nph=85, Dmin=4.9 km, Rmss=0.14 sec, Erho=0.14 km, Erzz=0.29 km, Gp=40 degrees |
| Event ID# | ci41111599 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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