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 2:53:41 AM (PDT) on Tuesday, August 18, 2026.
The magnitude 1.1 event occurred 6 km (4 miles) WNW of Calimesa, CA.
The hypocentral depth is 13 km ( 8 miles).
| Magnitude | 1.1 - local magnitude (Ml) |
| Time | Tuesday, August 18, 2026 at 2:53:41 AM (PDT) Tuesday, August 18, 2026 at 9:53:41 (UTC) |
| Distance from |
Calimesa, CA - 6 km (4 miles) WNW (299 degrees) Yucaipa, CA - 6 km (4 miles) WSW (249 degrees) Mentone, CA - 7 km (4 miles) SSE (158 degrees) Redlands, CA - 8 km (5 miles) SE (124 degrees) Loma Linda, CA - 15 km (9 miles) ESE (105 degrees) |
| Coordinates | 34 deg. 0.8 min. N (34.013N), 117 deg. 6.4 min. W (117.107W) |
| Depth | 12.99 km (8.10 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=69, Nph=125, Dmin=2.5 km, Rmss=0.14 sec, Erho=0.1 km, Erzz=0.27 km, Gp=34 degrees |
| Event ID# | ci41529088 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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