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 #4: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 7:10:11 PM (PDT) on Saturday, September 19, 2026.
The magnitude 0.8 event occurred 4 km (3 miles) SE of Ontario, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 0.8 - local magnitude (Ml) |
| Time | Saturday, September 19, 2026 at 7:10:11 PM (PDT) Sunday, September 20, 2026 at 2:10:11 (UTC) |
| Distance from |
Ontario, CA - 4 km (3 miles) SE (129 degrees) Mira Loma, CA - 8 km (5 miles) WNW (300 degrees) Chino, CA - 9 km (6 miles) E (80 degrees) Upland, CA - 9 km (6 miles) SE (146 degrees) Glen Avon, CA - 10 km (6 miles) W (280 degrees) |
| Coordinates | 34 deg. 1.6 min. N (34.027N), 117 deg. 35.4 min. W (117.590W) |
| Depth | 5.40 km (3.40 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=25, Nph=43, Dmin=3.6 km, Rmss=0.14 sec, Erho=0.23 km, Erzz=0.34 km, Gp=86 degrees |
| Event ID# | ci41335343 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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