Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #0: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.
A micro earthquake occurred at 5:14:09 PM (PDT) on Thursday, September 4, 2025.
The magnitude 1.5 event occurred 16 km (10 miles) SSE of Ridgemark, CA.
The hypocentral depth is 1 km (0.30 miles).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Thursday, September 4, 2025 at 5:14:09 PM (PDT) Friday, September 5, 2025 at 0:14:09 (UTC) |
| Distance from |
Ridgemark, CA - 16 km (10 miles) SSE (168 degrees) Chualar, CA - 20 km (12 miles) ENE (57 degrees) Gonzales, CA - 21 km (13 miles) NNE (30 degrees) Hollister, CA - 21 km (13 miles) SSE (163 degrees) Soledad, CA - 27 km (17 miles) N (359 degrees) |
| Coordinates | 36 deg. 40.1 min. N (36.668N), 121 deg. 19.8 min. W (121.329W) |
| Depth | 0.54 km (0.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=4.6 km, Rmss=0.16 sec, Erho=0.54 km, Erzz=1.29999995 km, Gp=73 degrees |
| Event ID# | nc75233242 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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