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 6:03:50 AM (PDT) on Sunday, July 27, 2025.
The magnitude 0.9 event occurred 5 km (3 miles) W of Mira Loma, CA.
The hypocentral depth is 14 km ( 9 miles).
| Magnitude | 0.9 - local magnitude (Ml) |
| Time | Sunday, July 27, 2025 at 6:03:50 AM (PDT) Sunday, July 27, 2025 at 13:03:50 (UTC) |
| Distance from |
Mira Loma, CA - 5 km (3 miles) W (275 degrees) Norco, CA - 7 km (5 miles) NNW (347 degrees) Ontario, CA - 8 km (5 miles) SE (138 degrees) Glen Avon, CA - 8 km (5 miles) WSW (257 degrees) Pedley, CA - 9 km (5 miles) WNW (286 degrees) |
| Coordinates | 33 deg. 59.8 min. N (33.996N), 117 deg. 34.0 min. W (117.567W) |
| Depth | 13.92 km (8.60 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=37, Nph=60, Dmin=11.0 km, Rmss=0.16 sec, Erho=0.22 km, Erzz=0.43 km, Gp=38 degrees |
| Event ID# | ci41033599 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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