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 2:16:08 PM (PDT) on Thursday, August 14, 2025.
The magnitude 1.8 event (a probable quarry explosion) occurred 13 km (8 miles) NE (38 degrees) of Bonadelle Ranchos-Madera Ranch, CA.
The hypocentral depth is -0.39 km (-0.20 miles).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Thursday, August 14, 2025 at 2:16:08 PM (PDT) Thursday, August 14, 2025 at 21:16:08 (UTC) |
| Distance from |
Bonadelle Ranchos-Madera Ranch, CA - 13 km (8 miles) NE (38 degrees) Yosemite Lakes, CA - 13 km (8 miles) S (184 degrees) Coarsegold, CA - 22 km (14 miles) SSW (199 degrees) Madera Acres, CA - 26 km (16 miles) ENE (76 degrees) Parksdale, CA - 26 km (16 miles) NE (56 degrees) |
| Coordinates | 37 deg. 4.6 min. N (37.077N), 119 deg. 47.0 min. W (119.783W) |
| Depth | -0.39 km (-0.20 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=10.9 km, Rmss=0.03 sec, Erho=0.35 km, Erzz=31.61 km, Gp=181 degrees |
| Event ID# | nc75223857 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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