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 1:22:57 AM (PDT) on Friday, October 9, 2026.
The magnitude 0.7 event occurred 5 km (3 miles) SE of Ontario, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 0.7 - local magnitude (Ml) |
| Time | Friday, October 9, 2026 at 1:22:57 AM (PDT) Friday, October 9, 2026 at 8:22:57 (UTC) |
| Distance from |
Ontario, CA - 5 km (3 miles) SE (131 degrees) Mira Loma, CA - 7 km (4 miles) WNW (298 degrees) Glen Avon, CA - 9 km (6 miles) W (277 degrees) Chino, CA - 10 km (6 miles) E (84 degrees) Upland, CA - 10 km (6 miles) SE (145 degrees) |
| Coordinates | 34 deg. 1.3 min. N (34.022N), 117 deg. 35.1 min. W (117.584W) |
| Depth | 5.02 km (3.10 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=29, Nph=50, Dmin=2.5 km, Rmss=0.14 sec, Erho=0.2 km, Erzz=0.28 km, Gp=74 degrees |
| Event ID# | ci41345455 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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