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 #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 7:59:38 PM (PST) on Sunday, November 16, 2025.
The magnitude 0.9 event occurred 5 km (3 miles) SE of Ontario, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 0.9 - local magnitude (Ml) |
| Time | Sunday, November 16, 2025 at 7:59:38 PM (PST) Monday, November 17, 2025 at 3:59:38 (UTC) |
| Distance from |
Ontario, CA - 5 km (3 miles) SE (134 degrees) Mira Loma, CA - 8 km (5 miles) WNW (296 degrees) Chino, CA - 9 km (6 miles) E (83 degrees) Upland, CA - 10 km (6 miles) SSE (147 degrees) Glen Avon, CA - 10 km (6 miles) W (277 degrees) |
| Coordinates | 34 deg. 1.3 min. N (34.022N), 117 deg. 35.4 min. W (117.590W) |
| Depth | 4.89 km (3.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=38, Nph=66, Dmin=8.8 km, Rmss=0.13 sec, Erho=0.14 km, Erzz=0.32 km, Gp=45 degrees |
| Event ID# | ci40485970 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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