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 #5: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro quarry occurred at 11:10:39 AM (PDT) on Tuesday, June 30, 2026.
The magnitude 1.1 event (a probable quarry explosion) occurred 9 km (6 miles) N of Big Bear City, CA.
The hypocentral depth is -2 km (-1 miles).
| Magnitude | 1.1 - local magnitude (Ml) |
| Time | Tuesday, June 30, 2026 at 11:10:39 AM (PDT) Tuesday, June 30, 2026 at 18:10:39 (UTC) |
| Distance from |
Big Bear City, CA - 9 km (6 miles) N (355 degrees) Big Bear Lake, CA - 12 km (8 miles) NNE (26 degrees) Lucerne Valley, CA - 15 km (10 miles) SE (137 degrees) Running Springs, CA - 28 km (17 miles) ENE (57 degrees) Lake Arrowhead, CA - 33 km (20 miles) ENE (71 degrees) |
| Coordinates | 34 deg. 20.5 min. N (34.342N), 116 deg. 51.2 min. W (116.854W) |
| Depth | -1.60 km (-1.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=26, Nph=29, Dmin=2.5 km, Rmss=0.25 sec, Erho=0.41 km, Erzz=31.61 km, Gp=53 degrees |
| Event ID# | ci41284287 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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