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 3:31:00 AM (PDT) on Wednesday, October 7, 2026.
The magnitude 1.5 event occurred 17 km (11 miles) SSE of Ridgemark, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 1.5 - duration magnitude (Md) |
| Time | Wednesday, October 7, 2026 at 3:31:00 AM (PDT) Wednesday, October 7, 2026 at 10:31:00 (UTC) |
| Distance from |
Ridgemark, CA - 17 km (11 miles) SSE (167 degrees) Chualar, CA - 20 km (13 miles) ENE (59 degrees) Gonzales, CA - 20 km (13 miles) NNE (32 degrees) Hollister, CA - 22 km (13 miles) SSE (162 degrees) Soledad, CA - 26 km (16 miles) N (0 degrees) |
| Coordinates | 36 deg. 39.8 min. N (36.663N), 121 deg. 19.5 min. W (121.324W) |
| Depth | 4.83 km (3.00 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=17, Nph=17, Dmin=5.3 km, Rmss=0.19 sec, Erho=0.5 km, Erzz=1.33000004 km, Gp=57 degrees |
| Event ID# | nc75445911 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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