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 4:23:48 AM (PDT) on Wednesday, October 29, 2025.
The magnitude 1.4 event occurred 4 km (2 miles) SE of Pacifica, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 1.4 - duration magnitude (Md) |
| Time | Wednesday, October 29, 2025 at 4:23:48 AM (PDT) Wednesday, October 29, 2025 at 11:23:48 (UTC) |
| Distance from |
Pacifica, CA - 4 km (2 miles) SE (135 degrees) San Bruno, CA - 6 km (4 miles) SW (220 degrees) Millbrae, CA - 6 km (4 miles) W (260 degrees) Hillsborough, CA - 7 km (4 miles) WNW (284 degrees) Montara, CA - 7 km (5 miles) NE (46 degrees) |
| Coordinates | 37 deg. 35.3 min. N (37.589N), 122 deg. 27.3 min. W (122.456W) |
| Depth | 8.47 km (5.30 miles) |
| Quality | Excellent |
| Location Quality Parameters | Nst=11, Nph=11, Dmin=3.2 km, Rmss=0.02 sec, Erho=0.38 km, Erzz=0.959999979 km, Gp=85 degrees |
| Event ID# | nc75256141 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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