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 6:55:30 PM (PDT) on Wednesday, July 19, 2023.
The magnitude 1.1 event occurred 7 km (4 miles) NW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 1.1 - duration magnitude (Md)
Time Wednesday, July 19, 2023 at 6:55:30 PM (PDT)
Thursday, July 20, 2023 at 1:55:30 (UTC)
Distance from The Geysers, CA - 7 km (4 miles) NW (308 degrees)
Cobb, CA - 8 km (5 miles) W (266 degrees)
Cloverdale, CA - 17 km (11 miles) E (86 degrees)
Kelseyville, CA - 18 km (11 miles) S (175 degrees)
Middletown, CA - 19 km (12 miles) WNW (292 degrees)
Coordinates 38 deg. 49.0 min. N (38.816N), 122 deg. 49.2 min. W (122.821W)
Depth 2.87 km (1.8 miles)
Quality Excellent
Location Quality Parameters Nst=16, Nph=16, Dmin=1.1 km, Rmss=0.03 sec, Erho=0.34 km, Erzz=0.64 km, Gp=54 degrees
Event ID# nc73914761
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For more information, see https://earthquake.usgs.gov

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