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 4:44:14 PM (PDT) on Thursday, October 23, 2025.
The magnitude 1.4 event occurred 1 km (0 miles) E (91 degrees) of Woodside, CA.
The hypocentral depth is 4 km ( 2 miles).
| Magnitude | 1.4 - duration magnitude (Md) |
| Time | Thursday, October 23, 2025 at 4:44:14 PM (PDT) Thursday, October 23, 2025 at 23:44:14 (UTC) |
| Distance from |
Woodside, CA - 1 km (0 miles) E (91 degrees) West Menlo Park, CA - 4 km (2 miles) W (264 degrees) Emerald Lake Hills, CA - 4 km (3 miles) SSE (152 degrees) Portola Valley, CA - 5 km (3 miles) N (350 degrees) Atherton, CA - 5 km (3 miles) SW (230 degrees) |
| Coordinates | 37 deg. 25.8 min. N (37.430N), 122 deg. 14.7 min. W (122.245W) |
| Depth | 3.54 km (2.20 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=3.0 km, Rmss=0.04 sec, Erho=0.35 km, Erzz=0.389999986 km, Gp=132 degrees |
| Event ID# | nc75253651 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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