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 3:32:33 AM (PDT) on Wednesday, August 20, 2025.
The magnitude 0.5 event occurred 3 km (2 miles) ESE of Lake Henshaw, CA.
The hypocentral depth is 11 km ( 6 miles).
| Magnitude | 0.5 - local magnitude (Ml) |
| Time | Wednesday, August 20, 2025 at 3:32:33 AM (PDT) Wednesday, August 20, 2025 at 10:32:33 (UTC) |
| Distance from |
Lake Henshaw, CA - 3 km (2 miles) ESE (104 degrees) Warner Springs, CA - 11 km (7 miles) WSW (240 degrees) Palomar Observatory, CA - 18 km (11 miles) SE (138 degrees) Julian, CA - 21 km (13 miles) NW (325 degrees) Ramona, CA - 25 km (16 miles) NNE (30 degrees) |
| Coordinates | 33 deg. 14.1 min. N (33.235N), 116 deg. 43.9 min. W (116.732W) |
| Depth | 10.54 km (6.50 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=27, Nph=47, Dmin=2.5 km, Rmss=0.16 sec, Erho=0.24 km, Erzz=0.37 km, Gp=34 degrees |
| Event ID# | ci40403738 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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