Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 10:55:11 PM (PDT) on Monday, September 1, 2025.
The magnitude 0.7 event occurred 14 km (9 miles) S of Ridgemark, CA.
The hypocentral depth is 7 km ( 4 miles).
| Magnitude | 0.7 - duration magnitude (Md) |
| Time | Monday, September 1, 2025 at 10:55:11 PM (PDT) Tuesday, September 2, 2025 at 5:55:11 (UTC) |
| Distance from |
Ridgemark, CA - 14 km (9 miles) S (180 degrees) Hollister, CA - 18 km (11 miles) S (171 degrees) Chualar, CA - 19 km (12 miles) NE (47 degrees) Gonzales, CA - 21 km (13 miles) NNE (20 degrees) San Juan Bautista, CA - 24 km (15 miles) SE (139 degrees) |
| Coordinates | 36 deg. 41.1 min. N (36.686N), 121 deg. 21.9 min. W (121.365W) |
| Depth | 7.18 km (4.50 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=21, Nph=27, Dmin=2.9 km, Rmss=0.09 sec, Erho=0.22 km, Erzz=0.45 km, Gp=53 degrees |
| Event ID# | nc75231897 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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