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 6:39:47 AM (PDT) on Wednesday, September 24, 2025.
The magnitude 2.1 event occurred 3 km (2 miles) NW of Petaluma, CA.
The hypocentral depth is 5 km ( 3 miles).
| Magnitude | 2.1 - duration magnitude (Md) |
| Time | Wednesday, September 24, 2025 at 6:39:47 AM (PDT) Wednesday, September 24, 2025 at 13:39:47 (UTC) |
| Distance from |
Petaluma, CA - 3 km (2 miles) NW (321 degrees) Penngrove, CA - 5 km (3 miles) S (171 degrees) Cotati, CA - 9 km (6 miles) SSE (152 degrees) Rohnert Park, CA - 10 km (7 miles) SSE (158 degrees) Temelec, CA - 14 km (9 miles) W (264 degrees) |
| Coordinates | 38 deg. 15.1 min. N (38.252N), 122 deg. 39.4 min. W (122.657W) |
| Depth | 5.30 km (3.30 miles) |
| Quality | Poor |
| Location Quality Parameters | Nst=5, Nph=5, Dmin=26.3 km, Rmss=0.06 sec, Erho=6.13 km, Erzz=9.80000019 km, Gp=219 degrees |
| Event ID# | nc75241387 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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