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 2:48:21 PM (PDT) on Monday, September 29, 2025.
The magnitude 1.1 event occurred 4 km (3 miles) NW of The Geysers, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 1.1 - duration magnitude (Md)
Time Monday, September 29, 2025 at 2:48:21 PM (PDT)
Monday, September 29, 2025 at 21:48:21 (UTC)
Distance from The Geysers, CA - 4 km (3 miles) NW (318 degrees)
Cobb, CA - 6 km (4 miles) WSW (254 degrees)
Middletown, CA - 16 km (10 miles) WNW (292 degrees)
Kelseyville, CA - 19 km (12 miles) SSE (167 degrees)
Lower Lake, CA - 19 km (12 miles) SW (234 degrees)
Coordinates 38 deg. 48.4 min. N (38.807N), 122 deg. 47.4 min. W (122.791W)
Depth 4.77 km (3.00 miles)
Quality Good
Location Quality Parameters Nst=14, Nph=14, Dmin=0.4 km, Rmss=0.16 sec, Erho=0.78 km, Erzz=1.39999998 km, Gp=66 degrees
Event ID# nc75243527
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