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 8:00:58 PM (PDT) on Friday, March 28, 2025.
The magnitude 0.9 event occurred 6 km (4 miles) N of Fontana, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 0.9 - local magnitude (Ml) |
| Time | Friday, March 28, 2025 at 8:00:58 PM (PDT) Saturday, March 29, 2025 at 3:00:58 (UTC) |
| Distance from |
Fontana, CA - 6 km (4 miles) N (355 degrees) Devore, CA - 10 km (6 miles) SW (217 degrees) Rialto, CA - 10 km (6 miles) WNW (301 degrees) Rancho Cucamonga, CA - 11 km (7 miles) ENE (73 degrees) Bloomington, CA - 11 km (7 miles) NW (326 degrees) |
| Coordinates | 34 deg. 9.2 min. N (34.153N), 117 deg. 27.8 min. W (117.463W) |
| Depth | 7.09 km (4.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=27, Nph=35, Dmin=5.5 km, Rmss=0.15 sec, Erho=0.26 km, Erzz=0.38 km, Gp=68 degrees |
| Event ID# | ci40912423 |
| Additional Information | Map Waveforms |
For more information, see https://earthquake.usgs.gov
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