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 8:31:35 AM (PDT) on Monday, September 13, 2021.
The magnitude 0.5 event occurred 4 km (2 miles) W of Cobb, CA.
The hypocentral depth is 2 km ( 1 mile).


Magnitude 0.5 - duration magnitude (Md)
Time Monday, September 13, 2021 at 8:31:35 AM (PDT)
Monday, September 13, 2021 at 15:31:35 (UTC)
Distance from Cobb, CA - 4 km (2 miles) W (277 degrees)
The Geysers, CA - 5 km (3 miles) N (352 degrees)
Middletown, CA - 15 km (10 miles) WNW (302 degrees)
Lower Lake, CA - 16 km (10 miles) SW (235 degrees)
Kelseyville, CA - 18 km (11 miles) SSE (159 degrees)
Coordinates 38 deg. 49.6 min. N (38.826N), 122 deg. 45.9 min. W (122.765W)
Depth 1.95 km (1.2 miles)
Quality Good
Location Quality Parameters Nst=9, Nph=9, Dmin=0.6 km, Rmss=0.01 sec, Erho=0.45 km, Erzz=0.56 km, Gp=128 degrees
Event ID# nc73624436
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For more information, see https://earthquake.usgs.gov

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