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 0:37:22 AM (PDT) on Saturday, October 18, 2025.
The magnitude 1.0 event occurred 3 km (2 miles) NW of Cobb, CA.
The hypocentral depth is 1 km (0.40 miles).
| Magnitude | 1.0 - duration magnitude (Md) |
| Time | Saturday, October 18, 2025 at 0:37:22 AM (PDT) Saturday, October 18, 2025 at 7:37:22 (UTC) |
| Distance from |
Cobb, CA - 3 km (2 miles) NW (321 degrees) The Geysers, CA - 7 km (4 miles) N (11 degrees) Lower Lake, CA - 14 km (9 miles) SW (235 degrees) Middletown, CA - 15 km (9 miles) NW (312 degrees) Hidden Valley Lake, CA - 16 km (10 miles) WNW (283 degrees) |
| Coordinates | 38 deg. 50.4 min. N (38.840N), 122 deg. 44.5 min. W (122.741W) |
| Depth | 0.59 km (0.40 miles) |
| Quality | Fair |
| Location Quality Parameters | Nst=10, Nph=10, Dmin=2.7 km, Rmss=0.03 sec, Erho=0.44 km, Erzz=0.879999995 km, Gp=188 degrees |
| Event ID# | nc75250941 |
| Additional Information | Map |
For more information, see https://earthquake.usgs.gov
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