Recent Earthquakes in California and Nevada
== PRELIMINARY EVENT REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro quarry occurred at 2:19:00 PM (PDT) on Friday, April 24, 2026.
The magnitude 1.2 event (a probable quarry explosion) occurred 6 km (4 miles) NE (49 degrees) of Santa Margarita, CA.
The hypocentral depth is -0.36 km (-0.20 miles).
| Magnitude | 1.2 - duration magnitude (Md) |
| Time | Friday, April 24, 2026 at 2:19:00 PM (PDT) Friday, April 24, 2026 at 21:19:00 (UTC) |
| Distance from |
Santa Margarita, CA - 6 km (4 miles) NE (49 degrees) Atascadero, CA - 12 km (8 miles) SE (126 degrees) San Luis Obispo, CA - 18 km (11 miles) NNE (30 degrees) Templeton, CA - 19 km (12 miles) SE (137 degrees) Paso Robles, CA - 25 km (15 miles) SSE (155 degrees) |
| Coordinates | 35 deg. 25.5 min. N (35.424N), 120 deg. 33.6 min. W (120.561W) |
| Depth | -0.36 km (-0.20 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=18, Nph=18, Dmin=7.0 km, Rmss=0.09 sec, Erho=0.23 km, Erzz=31.61 km, Gp=84 degrees |
| Event ID# | nc75350927 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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