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 8:53:13 AM (PDT) on Sunday, September 28, 2025.
The magnitude 2.1 event occurred 6 km (3 miles) NNE (32 degrees) of Ridgemark, CA.
The hypocentral depth is 6 km ( 4 miles).
| Magnitude | 2.1 - duration magnitude (Md) |
| Time | Sunday, September 28, 2025 at 8:53:13 AM (PDT) Sunday, September 28, 2025 at 15:53:13 (UTC) |
| Distance from |
Ridgemark, CA - 6 km (3 miles) NNE (32 degrees) Hollister, CA - 6 km (4 miles) E (82 degrees) San Juan Bautista, CA - 18 km (11 miles) E (87 degrees) Gilroy, CA - 27 km (17 miles) SE (129 degrees) Aromas, CA - 28 km (17 miles) E (98 degrees) |
| Coordinates | 36 deg. 51.3 min. N (36.854N), 121 deg. 19.9 min. W (121.332W) |
| Depth | 6.29 km (3.90 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=41, Nph=40, Dmin=6.1 km, Rmss=0.13 sec, Erho=0.23 km, Erzz=0.730000019 km, Gp=39 degrees |
| Event ID# | nc75242952 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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