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 #3: 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 2:30:33 PM (PST) on Tuesday, December 9, 2025.
The magnitude 1.4 event occurred 4 km (2 miles) ENE (66 degrees) of Rancho San Diego, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 1.4 - local magnitude (Ml) |
| Time | Tuesday, December 9, 2025 at 2:30:33 PM (PST) Tuesday, December 9, 2025 at 22:30:33 (UTC) |
| Distance from |
Rancho San Diego, CA - 4 km (2 miles) ENE (66 degrees) Jamul, CA - 5 km (3 miles) NNW (334 degrees) Bostonia, CA - 6 km (4 miles) SSE (148 degrees) El Cajon, CA - 7 km (4 miles) SE (124 degrees) Winter Gardens, CA - 8 km (5 miles) SSE (159 degrees) |
| Coordinates | 32 deg. 45.6 min. N (32.760N), 116 deg. 54.1 min. W (116.901W) |
| Depth | 4.75 km (3.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=32, Nph=56, Dmin=4.8 km, Rmss=0.19 sec, Erho=0.35 km, Erzz=0.69 km, Gp=76 degrees |
| Event ID# | ci41136367 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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