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 1:52:22 PM (PDT) on Thursday, October 9, 2025.
The magnitude 1.8 event occurred 16 km (10 miles) NE (55 degrees) of Gonzales, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 1.8 - duration magnitude (Md) |
| Time | Thursday, October 9, 2025 at 1:52:22 PM (PDT) Thursday, October 9, 2025 at 20:52:22 (UTC) |
| Distance from |
Gonzales, CA - 16 km (10 miles) NE (55 degrees) Soledad, CA - 18 km (11 miles) N (7 degrees) Chualar, CA - 20 km (12 miles) E (85 degrees) Ridgemark, CA - 26 km (16 miles) SSE (167 degrees) Greenfield, CA - 30 km (19 miles) N (350 degrees) |
| Coordinates | 36 deg. 35.2 min. N (36.587N), 121 deg. 18.0 min. W (121.300W) |
| Depth | 6.91 km (4.30 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=25, Nph=24, Dmin=3.0 km, Rmss=0.10 sec, Erho=0.3 km, Erzz=0.680000007 km, Gp=109 degrees |
| Event ID# | nc75247101 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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