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 is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro earthquake occurred at 9:57:47 PM (PDT) on Sunday, October 12, 2025.
The magnitude 0.9 event occurred 2 km (2 miles) ENE (61 degrees) of Grand Terrace, CA.
The hypocentral depth is 16 km (10 miles).
| Magnitude | 0.9 - local magnitude (Ml) |
| Time | Sunday, October 12, 2025 at 9:57:47 PM (PDT) Monday, October 13, 2025 at 4:57:47 (UTC) |
| Distance from |
Grand Terrace, CA - 2 km (2 miles) ENE (61 degrees) Loma Linda, CA - 3 km (2 miles) W (261 degrees) Colton, CA - 4 km (2 miles) SSE (147 degrees) San Bernardino, CA - 9 km (6 miles) S (178 degrees) Bloomington, CA - 10 km (6 miles) ESE (107 degrees) |
| Coordinates | 34 deg. 2.7 min. N (34.044N), 117 deg. 17.4 min. W (117.290W) |
| Depth | 15.72 km (9.80 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=19, Nph=27, Dmin=9.7 km, Rmss=0.11 sec, Erho=0.64 km, Erzz=0.51 km, Gp=241 degrees |
| Event ID# | ci41107399 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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