Recent Earthquakes in California and Nevada
== PRELIMINARY EVENT 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 is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro quarry occurred at 2:08:11 PM (PDT) on Friday, October 10, 2025.
The magnitude 1.5 event (a probable quarry explosion) occurred 8 km (5 miles) ESE of Poway, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 1.5 - local magnitude (Ml) |
| Time | Friday, October 10, 2025 at 2:08:11 PM (PDT) Friday, October 10, 2025 at 21:08:11 (UTC) |
| Distance from |
Poway, CA - 8 km (5 miles) ESE (123 degrees) Lakeside, CA - 8 km (5 miles) NNW (332 degrees) Santee, CA - 10 km (6 miles) N (5 degrees) Winter Gardens, CA - 11 km (7 miles) NNW (344 degrees) Bostonia, CA - 13 km (8 miles) N (349 degrees) |
| Coordinates | 32 deg. 55.4 min. N (32.924N), 116 deg. 57.9 min. W (116.964W) |
| Depth | 4.86 km (3.00 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=32, Nph=50, Dmin=8.0 km, Rmss=0.19 sec, Erho=0.33 km, Erzz=0.65 km, Gp=162 degrees |
| Event ID# | ci41106431 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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