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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 5:00:40 PM (PDT) on Friday, July 31, 2020.
The magnitude 1.4 event occurred 4 km (2 miles) SE of The Geysers, CA.
The hypocentral depth is 3 km ( 2 miles).



Magnitude 1.4 - duration magnitude (Md)
Time Friday, July 31, 2020 at 5:00:40 PM (PDT)
Saturday, August 1, 2020 at 0:00:40 (UTC)
Distance from The Geysers, CA - 4 km (2 miles) SE (129 degrees)
Cobb, CA - 7 km (4 miles) S (181 degrees)
Middletown, CA - 10 km (6 miles) W (273 degrees)
Hidden Valley Lake, CA - 16 km (10 miles) WSW (249 degrees)
Lower Lake, CA - 20 km (12 miles) SSW (210 degrees)
Coordinates 38 deg. 45.4 min. N (38.757N), 122 deg. 43.5 min. W (122.725W)
Depth 2.52 km (1.6 miles)
Quality Good
Location Quality Parameters Nst=25, Nph=25, Dmin=0.5 km, Rmss=0.06 sec, Erho=0.29 km, Erzz=0.5 km, Gp=113 degrees
Event ID# nc73436691
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