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 7:27:57 AM (PDT) on Thursday, September 9, 2021.
The magnitude 1.1 event occurred 2 km (1 miles) NNW of The Geysers, CA.
The hypocentral depth is 1 km ( 1 mile).


Magnitude 1.1 - duration magnitude (Md)
Time Thursday, September 9, 2021 at 7:27:57 AM (PDT)
Thursday, September 9, 2021 at 14:27:57 (UTC)
Distance from The Geysers, CA - 2 km (1 miles) NNW (336 degrees)
Cobb, CA - 5 km (3 miles) SW (231 degrees)
Middletown, CA - 14 km (9 miles) WNW (290 degrees)
Hidden Valley Lake, CA - 18 km (11 miles) W (265 degrees)
Lower Lake, CA - 19 km (12 miles) SW (226 degrees)
Coordinates 38 deg. 47.7 min. N (38.795N), 122 deg. 46.0 min. W (122.766W)
Depth 0.94 km (0.6 miles)
Quality Excellent
Location Quality Parameters Nst=37, Nph=37, Dmin=0.9 km, Rmss=0.05 sec, Erho=0.14 km, Erzz=0.33 km, Gp=70 degrees
Event ID# nc71126109
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For more information, see https://earthquake.usgs.gov

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