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 5:23:52 AM (PDT) on Friday, September 19, 2025.
The magnitude 1.0 event occurred 2 km (1 miles) SW of Cobb, CA.
The hypocentral depth is 1 km ( 1 mile).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Friday, September 19, 2025 at 5:23:52 AM (PDT) Friday, September 19, 2025 at 12:23:52 (UTC) |
| Distance from |
Cobb, CA - 2 km (1 miles) SW (231 degrees) The Geysers, CA - 4 km (2 miles) NNE (20 degrees) Middletown, CA - 13 km (8 miles) WNW (301 degrees) Lower Lake, CA - 16 km (10 miles) SW (226 degrees) Hidden Valley Lake, CA - 16 km (10 miles) W (271 degrees) |
| Coordinates | 38 deg. 48.7 min. N (38.811N), 122 deg. 44.4 min. W (122.740W) |
| Depth | 1.28 km (0.80 miles) |
| Quality | Good |
| Location Quality Parameters | Nst=8, Nph=8, Dmin=2.1 km, Rmss=0.02 sec, Erho=0.37 km, Erzz=1.00999999 km, Gp=134 degrees |
| Event ID# | nc75239477 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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