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 6:42:59 AM (PDT) on Wednesday, June 10, 2026.
The magnitude 1.8 event occurred 9 km (6 miles) E (86 degrees) of Larkfield-Wikiup, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 1.8 - duration magnitude (Md)
Time Wednesday, June 10, 2026 at 6:42:59 AM (PDT)
Wednesday, June 10, 2026 at 13:42:59 (UTC)
Distance from Larkfield-Wikiup, CA - 9 km (6 miles) E (86 degrees)
Santa Rosa, CA - 9 km (6 miles) NNE (32 degrees)
Calistoga, CA - 9 km (6 miles) SW (222 degrees)
Roseland, CA - 13 km (8 miles) NNE (33 degrees)
Windsor, CA - 15 km (9 miles) ESE (102 degrees)
Coordinates 38 deg. 31.1 min. N (38.519N), 122 deg. 38.9 min. W (122.649W)
Depth 5.19 km (3.20 miles)
Quality Good
Location Quality Parameters Nst=20, Nph=20, Dmin=8.3 km, Rmss=0.05 sec, Erho=0.25 km, Erzz=0.75999999 km, Gp=51 degrees
Event ID# nc75374236
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