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 4:45:00 PM (PDT) on Thursday, October 23, 2025.
The magnitude 2.6 event occurred 1 km (1 miles) ESE of Woodside, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 2.6 - duration magnitude (Md) |
| Time | Thursday, October 23, 2025 at 4:45:00 PM (PDT) Thursday, October 23, 2025 at 23:45:00 (UTC) |
| Distance from |
Woodside, CA - 1 km (1 miles) ESE (110 degrees) West Menlo Park, CA - 4 km (2 miles) W (259 degrees) Portola Valley, CA - 5 km (3 miles) N (350 degrees) Emerald Lake Hills, CA - 5 km (3 miles) SSE (154 degrees) Atherton, CA - 6 km (3 miles) SW (228 degrees) |
| Coordinates | 37 deg. 25.6 min. N (37.427N), 122 deg. 14.7 min. W (122.245W) |
| Depth | 5.19 km (3.20 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=66, Nph=63, Dmin=2.7 km, Rmss=0.12 sec, Erho=0.17 km, Erzz=0.50999999 km, Gp=83 degrees |
| Event ID# | nc75253656 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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