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 4:39:04 AM (PDT) on Tuesday, March 17, 2026.
The magnitude 1.7 event occurred 22 km (14 miles) N (4 degrees) of Upper Lake, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 1.7 - duration magnitude (Md)
Time Tuesday, March 17, 2026 at 4:39:04 AM (PDT)
Tuesday, March 17, 2026 at 11:39:04 (UTC)
Distance from Upper Lake, CA - 22 km (14 miles) N (4 degrees)
Nice, CA - 27 km (17 miles) N (352 degrees)
Redwood Valley, CA - 29 km (18 miles) ENE (67 degrees)
North Lakeport, CA - 31 km (19 miles) N (2 degrees)
Talmage, CA - 35 km (22 miles) NE (42 degrees)
Coordinates 39 deg. 21.9 min. N (39.365N), 122 deg. 53.6 min. W (122.893W)
Depth 6.81 km (4.20 miles)
Quality Excellent
Location Quality Parameters Nst=21, Nph=25, Dmin=3.7 km, Rmss=0.12 sec, Erho=0.25 km, Erzz=0.55 km, Gp=38 degrees
Event ID# nc75328737
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For more information, see https://earthquake.usgs.gov

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