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 7:43:22 AM (PDT) on Thursday, April 23, 2026.
The magnitude 1.1 event occurred 2 km (2 miles) ESE of Colton, CA.
The hypocentral depth is 15 km ( 9 miles).
| Magnitude | 1.1 - local magnitude (Ml) |
| Time | Thursday, April 23, 2026 at 7:43:22 AM (PDT) Thursday, April 23, 2026 at 14:43:22 (UTC) |
| Distance from |
Colton, CA - 2 km (2 miles) ESE (111 degrees) Loma Linda, CA - 3 km (2 miles) NW (308 degrees) Grand Terrace, CA - 4 km (3 miles) NNE (33 degrees) San Bernardino, CA - 7 km (4 miles) S (177 degrees) Rialto, CA - 9 km (5 miles) ESE (121 degrees) |
| Coordinates | 34 deg. 3.9 min. N (34.066N), 117 deg. 17.3 min. W (117.288W) |
| Depth | 14.91 km (9.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=43, Nph=70, Dmin=10.9 km, Rmss=0.17 sec, Erho=0.21 km, Erzz=0.38 km, Gp=66 degrees |
| Event ID# | ci41447160 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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