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 7:17:23 PM (PDT) on Friday, August 22, 2025.
The magnitude 0.7 event occurred 4 km (3 miles) NE (48 degrees) of Fontana, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 0.7 - local magnitude (Ml) |
| Time | Friday, August 22, 2025 at 7:17:23 PM (PDT) Saturday, August 23, 2025 at 2:17:23 (UTC) |
| Distance from |
Fontana, CA - 4 km (3 miles) NE (48 degrees) Rialto, CA - 5 km (3 miles) WNW (291 degrees) Bloomington, CA - 6 km (4 miles) NNW (336 degrees) Muscoy, CA - 8 km (5 miles) WSW (245 degrees) Devore, CA - 11 km (7 miles) S (190 degrees) |
| Coordinates | 34 deg. 7.4 min. N (34.123N), 117 deg. 25.4 min. W (117.424W) |
| Depth | 4.65 km (2.90 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=24, Nph=36, Dmin=2.9 km, Rmss=0.18 sec, Erho=0.3 km, Erzz=0.47 km, Gp=68 degrees |
| Event ID# | ci41272128 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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