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 2:41:23 AM (PDT) on Sunday, October 4, 2026.
The magnitude 0.9 event occurred 0 km (0 miles) SW of Charter Oak, CA.
The hypocentral depth is 3 km ( 2 miles).
| Magnitude | 0.9 - local magnitude (Ml) |
| Time | Sunday, October 4, 2026 at 2:41:23 AM (PDT) Sunday, October 4, 2026 at 9:41:23 (UTC) |
| Distance from |
Charter Oak, CA - 0 km (0 miles) SW (234 degrees) Covina, CA - 4 km (2 miles) ENE (72 degrees) San Dimas, CA - 4 km (2 miles) W (261 degrees) Citrus, CA - 4 km (3 miles) ESE (112 degrees) Glendora, CA - 4 km (3 miles) SSE (160 degrees) |
| Coordinates | 34 deg. 6.0 min. N (34.101N), 117 deg. 51.0 min. W (117.850W) |
| Depth | 2.80 km (1.70 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=36, Nph=56, Dmin=4.1 km, Rmss=0.14 sec, Erho=0.19 km, Erzz=0.16 km, Gp=69 degrees |
| Event ID# | ci41342927 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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