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 1:54:56 AM (PDT) on Friday, July 31, 2026.
The magnitude 1.1 event occurred 8 km (5 miles) ESE of Cloverdale, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 1.1 - duration magnitude (Md)
Time Friday, July 31, 2026 at 1:54:56 AM (PDT)
Friday, July 31, 2026 at 8:54:56 (UTC)
Distance from Cloverdale, CA - 8 km (5 miles) ESE (116 degrees)
The Geysers, CA - 16 km (10 miles) W (269 degrees)
Healdsburg, CA - 19 km (12 miles) NNW (342 degrees)
Cobb, CA - 19 km (12 miles) WSW (255 degrees)
Kelseyville, CA - 24 km (15 miles) SSW (201 degrees)
Coordinates 38 deg. 46.5 min. N (38.776N), 122 deg. 56.3 min. W (122.938W)
Depth 3.30 km (2.10 miles)
Quality Good
Location Quality Parameters Nst=11, Nph=10, Dmin=6.7 km, Rmss=0.02 sec, Erho=0.4 km, Erzz=1.95000005 km, Gp=151 degrees
Event ID# nc75409012
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