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 5:15:02 PM (PDT) on Monday, October 20, 2025.
The magnitude 0.5 event occurred 6 km (4 miles) WSW of Anza, CA.
The hypocentral depth is 3 km ( 2 miles).
| Magnitude | 0.5 - local magnitude (Ml) |
| Time | Monday, October 20, 2025 at 5:15:02 PM (PDT) Tuesday, October 21, 2025 at 0:15:02 (UTC) |
| Distance from |
Anza, CA - 6 km (4 miles) WSW (243 degrees) Aguanga, CA - 16 km (10 miles) NE (52 degrees) Palomar Observatory, CA - 23 km (14 miles) NNE (33 degrees) Idyllwild, CA - 23 km (14 miles) S (182 degrees) Valle Vista, CA - 28 km (18 miles) SSE (147 degrees) |
| Coordinates | 33 deg. 31.9 min. N (33.532N), 116 deg. 43.7 min. W (116.728W) |
| Depth | 3.44 km (2.10 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=23, Nph=42, Dmin=3.8 km, Rmss=0.14 sec, Erho=0.18 km, Erzz=0.36 km, Gp=63 degrees |
| Event ID# | ci41111999 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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