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 4:32:06 PM (PST) on Tuesday, November 11, 2025.
The magnitude 0.8 event occurred 7 km (4 miles) N of Upland, CA.
The hypocentral depth is 10 km ( 6 miles).
| Magnitude | 0.8 - local magnitude (Ml) |
| Time | Tuesday, November 11, 2025 at 4:32:06 PM (PST) Wednesday, November 12, 2025 at 0:32:06 (UTC) |
| Distance from |
Upland, CA - 7 km (4 miles) N (354 degrees) Rancho Cucamonga, CA - 8 km (5 miles) WNW (297 degrees) Claremont, CA - 9 km (5 miles) NE (42 degrees) Montclair, CA - 9 km (6 miles) NNE (20 degrees) La Verne, CA - 12 km (7 miles) ENE (59 degrees) |
| Coordinates | 34 deg. 9.3 min. N (34.156N), 117 deg. 39.3 min. W (117.656W) |
| Depth | 10.23 km (6.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=21, Nph=38, Dmin=4.2 km, Rmss=0.2 sec, Erho=0.36 km, Erzz=0.51 km, Gp=63 degrees |
| Event ID# | ci40483994 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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