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 #4: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro earthquake occurred at 9:20:18 PM (PDT) on Monday, October 20, 2025.
The magnitude 0.8 event occurred 5 km (3 miles) SW of Palomar Observatory, CA.
The hypocentral depth is 19 km (12 miles).
| Magnitude | 0.8 - local magnitude (Ml) |
| Time | Monday, October 20, 2025 at 9:20:18 PM (PDT) Tuesday, October 21, 2025 at 4:20:18 (UTC) |
| Distance from |
Palomar Observatory, CA - 5 km (3 miles) SW (219 degrees) Aguanga, CA - 14 km (9 miles) SSW (192 degrees) Lake Henshaw, CA - 15 km (9 miles) NW (306 degrees) Pala, CA - 17 km (11 miles) ESE (106 degrees) Valley Center, CA - 17 km (11 miles) NE (48 degrees) |
| Coordinates | 33 deg. 19.3 min. N (33.322N), 116 deg. 53.8 min. W (116.897W) |
| Depth | 18.64 km (11.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=50, Nph=85, Dmin=4.7 km, Rmss=0.18 sec, Erho=0.18 km, Erzz=0.39 km, Gp=30 degrees |
| Event ID# | ci41112087 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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