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 9:39:50 PM (PDT) on Monday, October 5, 2026.
The magnitude 1.6 event occurred 15 km (9 miles) S of Ridgemark, CA.
The hypocentral depth is 2 km ( 1 mile).
| Magnitude | 1.6 - duration magnitude (Md) |
| Time | Monday, October 5, 2026 at 9:39:50 PM (PDT) Tuesday, October 6, 2026 at 4:39:50 (UTC) |
| Distance from |
Ridgemark, CA - 15 km (9 miles) S (175 degrees) Chualar, CA - 19 km (12 miles) NE (50 degrees) Hollister, CA - 19 km (12 miles) SSE (167 degrees) Gonzales, CA - 21 km (13 miles) NNE (23 degrees) San Juan Bautista, CA - 25 km (15 miles) SE (138 degrees) |
| Coordinates | 36 deg. 40.9 min. N (36.682N), 121 deg. 21.1 min. W (121.352W) |
| Depth | 2.25 km (1.40 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=18, Nph=17, Dmin=2.9 km, Rmss=0.17 sec, Erho=0.41 km, Erzz=0.920000017 km, Gp=66 degrees |
| Event ID# | nc75445306 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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