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 #8: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 5:10:50 AM (PDT) on Monday, October 20, 2025.
The magnitude 1.8 event occurred 1 km (1 miles) E (99 degrees) of Winchester, CA.
The hypocentral depth is 12 km ( 8 miles).
| Magnitude | 1.8 - local magnitude (Ml) |
| Time | Monday, October 20, 2025 at 5:10:50 AM (PDT) Monday, October 20, 2025 at 12:10:50 (UTC) |
| Distance from |
Winchester, CA - 1 km (1 miles) E (99 degrees) Green Acres, CA - 4 km (2 miles) S (175 degrees) Menifee, CA - 7 km (5 miles) ESE (110 degrees) Hemet, CA - 10 km (6 miles) WSW (243 degrees) Nuevo, CA - 13 km (8 miles) SSE (148 degrees) |
| Coordinates | 33 deg. 42.3 min. N (33.706N), 117 deg. 4.4 min. W (117.073W) |
| Depth | 12.11 km (7.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=94, Nph=171, Dmin=6.6 km, Rmss=0.19 sec, Erho=0.13 km, Erzz=0.33 km, Gp=26 degrees |
| Event ID# | ci41111631 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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