Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 9:09:50 AM (PDT) on Sunday, August 3, 2025.
The magnitude 1.1 event occurred 15 km (9 miles) S of Ridgemark, CA.
The hypocentral depth is 1 km (0.40 miles).
| Magnitude | 1.1 - duration magnitude (Md) |
| Time | Sunday, August 3, 2025 at 9:09:50 AM (PDT) Sunday, August 3, 2025 at 16:09:50 (UTC) |
| Distance from |
Ridgemark, CA - 15 km (9 miles) S (177 degrees) Chualar, CA - 19 km (12 miles) NE (49 degrees) Hollister, CA - 19 km (12 miles) SSE (168 degrees) Gonzales, CA - 21 km (13 miles) NNE (22 degrees) San Juan Bautista, CA - 24 km (15 miles) SE (138 degrees) |
| Coordinates | 36 deg. 40.9 min. N (36.682N), 121 deg. 21.4 min. W (121.356W) |
| Depth | 0.62 km (0.40 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=19, Nph=21, Dmin=3.0 km, Rmss=0.13 sec, Erho=0.3 km, Erzz=0.81 km, Gp=60 degrees |
| Event ID# | nc75218677 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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