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 #6: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 8:27:10 PM (PDT) on Tuesday, August 12, 2025.
The magnitude 0.5 event occurred 7 km (4 miles) NNE (26 degrees) of Fontana, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 0.5 - local magnitude (Ml) |
| Time | Tuesday, August 12, 2025 at 8:27:10 PM (PDT) Wednesday, August 13, 2025 at 3:27:10 (UTC) |
| Distance from |
Fontana, CA - 7 km (4 miles) NNE (26 degrees) Rialto, CA - 7 km (4 miles) NW (314 degrees) Devore, CA - 8 km (5 miles) SSW (196 degrees) Muscoy, CA - 8 km (5 miles) W (267 degrees) Bloomington, CA - 9 km (6 miles) NNW (342 degrees) |
| Coordinates | 34 deg. 9.1 min. N (34.151N), 117 deg. 25.6 min. W (117.427W) |
| Depth | 6.39 km (4.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=26, Nph=38, Dmin=4.6 km, Rmss=0.16 sec, Erho=0.23 km, Erzz=0.5 km, Gp=95 degrees |
| Event ID# | ci41259632 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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