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 11:33:37 AM (PDT) on Wednesday, March 11, 2026.
The magnitude 1.2 event (a probable quarry explosion) occurred 6 km (3 miles) NNW of Lakeside, CA.
The hypocentral depth is -0.19 km (-0.10 miles).
| Magnitude | 1.2 - local magnitude (Ml) |
| Time | Wednesday, March 11, 2026 at 11:33:37 AM (PDT) Wednesday, March 11, 2026 at 18:33:37 (UTC) |
| Distance from |
Lakeside, CA - 6 km (3 miles) NNW (341 degrees) Winter Gardens, CA - 8 km (5 miles) N (355 degrees) Santee, CA - 8 km (5 miles) NNE (22 degrees) Bostonia, CA - 11 km (7 miles) N (358 degrees) Poway, CA - 11 km (7 miles) SE (126 degrees) |
| Coordinates | 32 deg. 54.3 min. N (32.905N), 116 deg. 56.5 min. W (116.941W) |
| Depth | -0.19 km (-0.10 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=33, Nph=33, Dmin=9.1 km, Rmss=0.28 sec, Erho=0.57 km, Erzz=31.61 km, Gp=110 degrees |
| Event ID# | ci41202463 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
[
Index map ||
Big earthquake list ||
All earthquake list ||
Glossary of terms ||
Top page
]
[
Did you feel it? ||
ShakeMaps
|| Relative2Me
]
[ Data Sources ]
Special maps
Long Valley || Los Angeles || San Francisco
Data Sources
US and World - USGS/NEIC = National Earthquake Information Center
Northern California - UCB = University of California, Berkeley
Southern California - Caltech = California Institute of Technology
Nevada - UNR = University of Nevada, Reno
Offshore = West Coast & Alaska Tsunami Warning Center
...all members of the Advanced National Seismic System (ANSS)
