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 3:59:17 PM (PDT) on Tuesday, August 18, 2026.
The magnitude 0.5 event occurred 6 km (4 miles) NNW of Lake Henshaw, CA.
The hypocentral depth is 14 km ( 9 miles).
| Magnitude | 0.5 - local magnitude (Ml) |
| Time | Tuesday, August 18, 2026 at 3:59:17 PM (PDT) Tuesday, August 18, 2026 at 22:59:17 (UTC) |
| Distance from |
Lake Henshaw, CA - 6 km (4 miles) NNW (345 degrees) Palomar Observatory, CA - 11 km (7 miles) SE (132 degrees) Warner Springs, CA - 14 km (8 miles) W (275 degrees) Aguanga, CA - 19 km (12 miles) SSE (155 degrees) Valley Center, CA - 25 km (16 miles) ENE (71 degrees) |
| Coordinates | 33 deg. 17.5 min. N (33.292N), 116 deg. 46.8 min. W (116.779W) |
| Depth | 14.08 km (8.70 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=25, Nph=40, Dmin=6.5 km, Rmss=0.17 sec, Erho=0.28 km, Erzz=0.54 km, Gp=50 degrees |
| Event ID# | ci41529728 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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