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 7:47:11 PM (PDT) on Thursday, July 13, 2023.
The magnitude 1.4 event occurred 3 km (2 miles) ESE of The Geysers, CA.
The hypocentral depth is 2 km ( 1 mile).


Magnitude 1.4 - duration magnitude (Md)
Time Thursday, July 13, 2023 at 7:47:11 PM (PDT)
Friday, July 14, 2023 at 2:47:11 (UTC)
Distance from The Geysers, CA - 3 km (2 miles) ESE (123 degrees)
Cobb, CA - 7 km (4 miles) S (181 degrees)
Middletown, CA - 10 km (6 miles) W (276 degrees)
Hidden Valley Lake, CA - 15 km (10 miles) WSW (250 degrees)
Lower Lake, CA - 19 km (12 miles) SSW (211 degrees)
Coordinates 38 deg. 45.7 min. N (38.761N), 122 deg. 43.5 min. W (122.724W)
Depth 2.21 km (1.4 miles)
Quality Excellent
Location Quality Parameters Nst=41, Nph=42, Dmin=0.1 km, Rmss=0.06 sec, Erho=0.18 km, Erzz=0.25 km, Gp=54 degrees
Event ID# nc73912541
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For more information, see https://earthquake.usgs.gov

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