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 #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 11:17:09 PM (PDT) on Wednesday, August 13, 2025.
The magnitude 0.9 event occurred 7 km (4 miles) WSW of Alpine, CA.
The hypocentral depth is 19 km (12 miles).
| Magnitude | 0.9 - local magnitude (Ml) |
| Time | Wednesday, August 13, 2025 at 11:17:09 PM (PDT) Thursday, August 14, 2025 at 6:17:09 (UTC) |
| Distance from |
Alpine, CA - 7 km (4 miles) WSW (253 degrees) Winter Gardens, CA - 9 km (6 miles) E (101 degrees) Bostonia, CA - 9 km (6 miles) E (84 degrees) Lakeside, CA - 9 km (6 miles) ESE (121 degrees) El Cajon, CA - 12 km (7 miles) ENE (78 degrees) |
| Coordinates | 32 deg. 49.0 min. N (32.816N), 116 deg. 50.4 min. W (116.839W) |
| Depth | 19.18 km (11.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=36, Nph=61, Dmin=8.3 km, Rmss=0.18 sec, Erho=0.22 km, Erzz=0.4 km, Gp=63 degrees |
| Event ID# | ci41260520 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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