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 11:41:07 AM (PDT) on Sunday, September 28, 2025.
The magnitude 1.4 event occurred 19 km (12 miles) SSE of Ridgemark, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 1.4 - duration magnitude (Md) |
| Time | Sunday, September 28, 2025 at 11:41:07 AM (PDT) Sunday, September 28, 2025 at 18:41:07 (UTC) |
| Distance from |
Ridgemark, CA - 19 km (12 miles) SSE (161 degrees) Gonzales, CA - 21 km (13 miles) NE (38 degrees) Chualar, CA - 22 km (14 miles) ENE (65 degrees) Hollister, CA - 23 km (14 miles) SSE (157 degrees) Soledad, CA - 26 km (16 miles) N (6 degrees) |
| Coordinates | 36 deg. 39.3 min. N (36.654N), 121 deg. 17.9 min. W (121.299W) |
| Depth | 5.07 km (3.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=5.0 km, Rmss=0.19 sec, Erho=0.64 km, Erzz=2.3599999 km, Gp=77 degrees |
| Event ID# | nc75243042 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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