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 2:09:50 PM (PDT) on Thursday, September 25, 2025.
The magnitude 1.2 event occurred 7 km (4 miles) NW of La Mesa, CA.
The hypocentral depth is 3 km ( 2 miles).
| Magnitude | 1.2 - local magnitude (Ml) |
| Time | Thursday, September 25, 2025 at 2:09:50 PM (PDT) Thursday, September 25, 2025 at 21:09:50 (UTC) |
| Distance from |
La Mesa, CA - 7 km (4 miles) NW (323 degrees) San Diego, CA - 9 km (5 miles) ENE (61 degrees) Lemon Grove, CA - 9 km (6 miles) NNW (338 degrees) Santee, CA - 9 km (6 miles) WSW (255 degrees) Spring Valley, CA - 10 km (6 miles) NW (322 degrees) |
| Coordinates | 32 deg. 49.0 min. N (32.817N), 117 deg. 4.0 min. W (117.067W) |
| Depth | 3.37 km (2.10 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=22, Nph=36, Dmin=8.7 km, Rmss=0.24 sec, Erho=0.52 km, Erzz=0.66 km, Gp=135 degrees |
| Event ID# | ci41097807 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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