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 4:18:25 PM (PDT) on Wednesday, October 8, 2025.
The magnitude 1.7 event occurred 10 km (6 miles) ENE (60 degrees) of Hidden Valley Lake, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 1.7 - duration magnitude (Md)
Time Wednesday, October 8, 2025 at 4:18:25 PM (PDT)
Wednesday, October 8, 2025 at 23:18:25 (UTC)
Distance from Hidden Valley Lake, CA - 10 km (6 miles) ENE (60 degrees)
Lower Lake, CA - 15 km (9 miles) ESE (117 degrees)
Middletown, CA - 17 km (11 miles) NE (50 degrees)
Clearlake, CA - 19 km (12 miles) SE (129 degrees)
Cobb, CA - 23 km (14 miles) E (82 degrees)
Coordinates 38 deg. 51.1 min. N (38.852N), 122 deg. 27.6 min. W (122.461W)
Depth 7.74 km (4.80 miles)
Quality Good
Location Quality Parameters Nst=8, Nph=7, Dmin=3.3 km, Rmss=0.09 sec, Erho=0.7 km, Erzz=1.17999995 km, Gp=140 degrees
Event ID# nc75246776
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