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 6:36:01 AM (PDT) on Monday, September 29, 2025.
The magnitude 1.7 event occurred 9 km (6 miles) ESE of Ridgemark, CA.
The hypocentral depth is 9 km ( 5 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Monday, September 29, 2025 at 6:36:01 AM (PDT) Monday, September 29, 2025 at 13:36:01 (UTC) |
| Distance from |
Ridgemark, CA - 9 km (6 miles) ESE (121 degrees) Hollister, CA - 14 km (9 miles) SE (129 degrees) San Juan Bautista, CA - 25 km (15 miles) ESE (110 degrees) Chualar, CA - 31 km (19 miles) NE (44 degrees) Gonzales, CA - 33 km (20 miles) NNE (27 degrees) |
| Coordinates | 36 deg. 46.2 min. N (36.769N), 121 deg. 16.6 min. W (121.277W) |
| Depth | 8.56 km (5.30 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=35, Nph=35, Dmin=3.2 km, Rmss=0.09 sec, Erho=0.25 km, Erzz=0.379999995 km, Gp=86 degrees |
| Event ID# | nc75243327 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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