Recent Earthquakes in California and Nevada
== PRELIMINARY EVENT 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 quarry occurred at 3:53:16 PM (PDT) on Tuesday, August 18, 2026.
The magnitude 1.0 event (a probable quarry explosion) occurred 5 km (3 miles) W of Tecate, B.C., MX.
The hypocentral depth is -1 km (-0.50 miles).
| Magnitude | 1.0 - local magnitude (Ml) |
| Time | Tuesday, August 18, 2026 at 3:53:16 PM (PDT) Tuesday, August 18, 2026 at 22:53:16 (UTC) |
| Distance from |
Tecate, B.C., MX - 5 km (3 miles) W (264 degrees) Campo, CA - 21 km (13 miles) WSW (256 degrees) Jamul, CA - 25 km (15 miles) SE (134 degrees) Rancho San Diego, CA - 31 km (19 miles) SE (131 degrees) Alpine, CA - 31 km (19 miles) SSE (166 degrees) |
| Coordinates | 32 deg. 33.7 min. N (32.562N), 116 deg. 41.2 min. W (116.686W) |
| Depth | -0.83 km (-0.50 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=12, Nph=18, Dmin=9.7 km, Rmss=0.31 sec, Erho=0.71 km, Erzz=31.61 km, Gp=126 degrees |
| Event ID# | ci41529720 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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