Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 5:02:18 PM (PDT) on Saturday, July 26, 2025.
The magnitude 0.4 event occurred 3 km (2 miles) WSW of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).


Magnitude 0.4 - duration magnitude (Md)
Time Saturday, July 26, 2025 at 5:02:18 PM (PDT)
Sunday, July 27, 2025 at 0:02:18 (UTC)
Distance from Cobb, CA - 3 km (2 miles) WSW (258 degrees)
The Geysers, CA - 4 km (3 miles) N (353 degrees)
Middletown, CA - 15 km (9 miles) WNW (299 degrees)
Lower Lake, CA - 17 km (10 miles) SW (231 degrees)
Hidden Valley Lake, CA - 18 km (11 miles) W (273 degrees)
Coordinates 38 deg. 48.9 min. N (38.816N), 122 deg. 45.7 min. W (122.762W)
Depth 2.21 km (1.40 miles)
Quality Good
Location Quality Parameters Nst=12, Nph=14, Dmin=1.6 km, Rmss=0.02 sec, Erho=0.25 km, Erzz=0.32 km, Gp=113 degrees
Event ID# nc75215572
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