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== 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 5:21:50 PM (PDT) on Tuesday, September 10, 2019.
The magnitude 0.6 event occurred 2 km (1 miles) SW of Cobb, CA.
The hypocentral depth is 7 km ( 4 miles).



Magnitude 0.6 - duration magnitude (Md)
Time Tuesday, September 10, 2019 at 5:21:50 PM (PDT)
Wednesday, September 11, 2019 at 0:21:50 (UTC)
Distance from Cobb, CA - 2 km (1 miles) SW (231 degrees)
The Geysers, CA - 4 km (2 miles) NNE (18 degrees)
Middletown, CA - 13 km (8 miles) WNW (300 degrees)
Lower Lake, CA - 16 km (10 miles) SW (226 degrees)
Hidden Valley Lake, CA - 16 km (10 miles) W (271 degrees)
Coordinates 38 deg. 48.6 min. N (38.809N), 122 deg. 44.6 min. W (122.743W)
Depth 6.84 km (4.3 miles)
Quality Fair
Location Quality Parameters Nst=8, Nph=8, Dmin=3.3 km, Rmss=0.04 sec, Erho=1.4 km, Erzz=4.03 km, Gp=177 degrees
Event ID# nc73268825
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