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 4:34:45 AM (PDT) on Friday, May 1, 2026.
The magnitude 0.5 event occurred 6 km (3 miles) W of Cobb, CA.
The hypocentral depth is 1 km ( 1 mile).


Magnitude 0.5 - duration magnitude (Md)
Time Friday, May 1, 2026 at 4:34:45 AM (PDT)
Friday, May 1, 2026 at 11:34:45 (UTC)
Distance from Cobb, CA - 6 km (3 miles) W (273 degrees)
The Geysers, CA - 6 km (4 miles) NNW (333 degrees)
Middletown, CA - 17 km (11 miles) WNW (298 degrees)
Kelseyville, CA - 18 km (11 miles) SSE (165 degrees)
Lower Lake, CA - 18 km (11 miles) WSW (238 degrees)
Coordinates 38 deg. 49.5 min. N (38.825N), 122 deg. 47.2 min. W (122.787W)
Depth 1.47 km (0.90 miles)
Quality Excellent
Location Quality Parameters Nst=26, Nph=29, Dmin=1.4 km, Rmss=0.04 sec, Erho=0.16 km, Erzz=0.31 km, Gp=35 degrees
Event ID# nc75354947
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