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 3:15:31 AM (PDT) on Thursday, October 29, 2026.
The magnitude 1.7 event occurred 13 km (8 miles) SW of Chester, CA.
The hypocentral depth is 0.22 km (0.10 miles).
| Magnitude | 1.7 - duration magnitude (Md) |
| Time | Thursday, October 29, 2026 at 3:15:31 AM (PDT) Thursday, October 29, 2026 at 10:15:31 (UTC) |
| Distance from |
Chester, CA - 13 km (8 miles) SW (224 degrees) Greenville, CA - 34 km (21 miles) WNW (286 degrees) Quincy, CA - 46 km (29 miles) NW (314 degrees) Forest Ranch, CA - 47 km (29 miles) NE (37 degrees) East Quincy, CA - 49 km (31 miles) NW (311 degrees) |
| Coordinates | 40 deg. 13.4 min. N (40.223N), 121 deg. 20.2 min. W (121.337W) |
| Depth | 0.22 km (0.10 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=7, Nph=7, Dmin=17.9 km, Rmss=0.12 sec, Erho=0.6 km, Erzz=12.1499996 km, Gp=115 degrees |
| Event ID# | nc75459332 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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