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 0:49:17 AM (PDT) on Wednesday, July 19, 2023.
The magnitude 0.4 event occurred 7 km (5 miles) NW of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).


Magnitude 0.4 - duration magnitude (Md)
Time Wednesday, July 19, 2023 at 0:49:17 AM (PDT)
Wednesday, July 19, 2023 at 7:49:17 (UTC)
Distance from The Geysers, CA - 7 km (5 miles) NW (304 degrees)
Cobb, CA - 9 km (6 miles) W (264 degrees)
Cloverdale, CA - 17 km (10 miles) E (87 degrees)
Kelseyville, CA - 18 km (11 miles) S (176 degrees)
Middletown, CA - 20 km (12 miles) WNW (291 degrees)
Coordinates 38 deg. 48.9 min. N (38.814N), 122 deg. 49.6 min. W (122.826W)
Depth 2.73 km (1.7 miles)
Quality Excellent
Location Quality Parameters Nst=31, Nph=35, Dmin=0.6 km, Rmss=0.04 sec, Erho=0.18 km, Erzz=0.31 km, Gp=46 degrees
Event ID# nc73914501
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For more information, see https://earthquake.usgs.gov

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