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 8:20:14 PM (PDT) on Wednesday, July 19, 2023.
The magnitude 0.2 event occurred 7 km (4 miles) WNW of Cobb, CA.
The hypocentral depth is 2 km ( 2 miles).


Magnitude 0.2 - duration magnitude (Md)
Time Wednesday, July 19, 2023 at 8:20:14 PM (PDT)
Thursday, July 20, 2023 at 3:20:14 (UTC)
Distance from Cobb, CA - 7 km (4 miles) WNW (282 degrees)
The Geysers, CA - 7 km (5 miles) NNW (330 degrees)
Kelseyville, CA - 16 km (10 miles) SSE (168 degrees)
Middletown, CA - 18 km (11 miles) WNW (300 degrees)
Lower Lake, CA - 18 km (11 miles) WSW (243 degrees)
Coordinates 38 deg. 50.1 min. N (38.835N), 122 deg. 48.0 min. W (122.799W)
Depth 2.34 km (1.5 miles)
Quality Good
Location Quality Parameters Nst=7, Nph=7, Dmin=0.9 km, Rmss=0.03 sec, Erho=0.5 km, Erzz=1.88 km, Gp=107 degrees
Event ID# nc73914786
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For more information, see https://earthquake.usgs.gov

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