Recent Earthquakes in California and Nevada
== PRELIMINARY EARTHQUAKE REPORT ==
U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California
Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.
A micro earthquake occurred at 10:41:47 AM (PDT) on Saturday, September 6, 2025.
The magnitude 0.4 event occurred 4 km (3 miles) SE of Pacifica, CA.
The hypocentral depth is 8 km ( 5 miles).
| Magnitude | 0.4 - duration magnitude (Md) |
| Time | Saturday, September 6, 2025 at 10:41:47 AM (PDT) Saturday, September 6, 2025 at 17:41:47 (UTC) |
| Distance from |
Pacifica, CA - 4 km (3 miles) SE (143 degrees) Millbrae, CA - 6 km (4 miles) WSW (255 degrees) Montara, CA - 7 km (4 miles) NE (48 degrees) San Bruno, CA - 7 km (4 miles) SW (219 degrees) Hillsborough, CA - 7 km (4 miles) W (279 degrees) |
| Coordinates | 37 deg. 35.0 min. N (37.584N), 122 deg. 27.5 min. W (122.458W) |
| Depth | 8.13 km (5.10 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=10, Nph=14, Dmin=3.4 km, Rmss=0.05 sec, Erho=0.34 km, Erzz=0.45 km, Gp=94 degrees |
| Event ID# | nc75233972 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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