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 2:34:36 PM (PDT) on Sunday, August 31, 2025.
The magnitude 1.7 event occurred 12 km (7 miles) S of Ridgemark, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Sunday, August 31, 2025 at 2:34:36 PM (PDT) Sunday, August 31, 2025 at 21:34:36 (UTC) |
| Distance from |
Ridgemark, CA - 12 km (7 miles) S (184 degrees) Hollister, CA - 16 km (10 miles) S (172 degrees) Chualar, CA - 20 km (12 miles) NE (40 degrees) San Juan Bautista, CA - 21 km (13 miles) SE (137 degrees) Gonzales, CA - 23 km (14 miles) NNE (16 degrees) |
| Coordinates | 36 deg. 42.4 min. N (36.707N), 121 deg. 22.5 min. W (121.375W) |
| Depth | 2.11 km (1.30 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=16, Nph=16, Dmin=2.5 km, Rmss=0.14 sec, Erho=0.37 km, Erzz=0.819999993 km, Gp=67 degrees |
| Event ID# | nc75231372 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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