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 event has been reviewed by a seismologist.
A micro earthquake occurred at 2:44:33 AM (PDT) on Tuesday, September 23, 2025.
The magnitude 1.6 event occurred 21 km (13 miles) WNW of La Jolla, CA.
The hypocentral depth is 18 km (11 miles).
| Magnitude | 1.6 - local magnitude (Ml) |
| Time | Tuesday, September 23, 2025 at 2:44:33 AM (PDT) Tuesday, September 23, 2025 at 9:44:33 (UTC) |
| Distance from |
La Jolla, CA - 21 km (13 miles) WNW (283 degrees) Del Mar, CA - 23 km (14 miles) WSW (250 degrees) Solana Beach, CA - 24 km (15 miles) WSW (242 degrees) Encinitas, CA - 25 km (15 miles) SW (229 degrees) Rancho Santa Fe, CA - 31 km (19 miles) WSW (242 degrees) |
| Coordinates | 32 deg. 53.5 min. N (32.891N), 117 deg. 29.7 min. W (117.494W) |
| Depth | 17.68 km (11.00 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=40, Nph=75, Dmin=25.2 km, Rmss=0.13 sec, Erho=0.32 km, Erzz=0.53 km, Gp=230 degrees |
| Event ID# | ci40448642 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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