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 #7: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 2:48:15 AM (PDT) on Thursday, August 7, 2025.
The magnitude 0.7 event occurred 4 km (3 miles) NE (34 degrees) of Fontana, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 0.7 - local magnitude (Ml) |
| Time | Thursday, August 7, 2025 at 2:48:15 AM (PDT) Thursday, August 7, 2025 at 9:48:15 (UTC) |
| Distance from |
Fontana, CA - 4 km (3 miles) NE (34 degrees) Rialto, CA - 6 km (4 miles) WNW (293 degrees) Bloomington, CA - 7 km (5 miles) NNW (332 degrees) Muscoy, CA - 9 km (5 miles) WSW (251 degrees) Devore, CA - 11 km (7 miles) SSW (196 degrees) |
| Coordinates | 34 deg. 7.7 min. N (34.128N), 117 deg. 26.0 min. W (117.434W) |
| Depth | 7.89 km (4.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=30, Nph=52, Dmin=9.8 km, Rmss=0.16 sec, Erho=0.29 km, Erzz=0.59 km, Gp=91 degrees |
| Event ID# | ci41255360 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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