Recent Earthquakes in California and Nevada


== 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 9:33:41 PM (PDT) on Thursday, March 26, 2026.
The magnitude 1.7 event occurred 20 km (12 miles) NE (37 degrees) of Upper Lake, CA.
The hypocentral depth is 9 km ( 6 miles).


Magnitude 1.7 - duration magnitude (Md)
Time Thursday, March 26, 2026 at 9:33:41 PM (PDT)
Friday, March 27, 2026 at 4:33:41 (UTC)
Distance from Upper Lake, CA - 20 km (12 miles) NE (37 degrees)
Nice, CA - 21 km (13 miles) NNE (18 degrees)
North Lakeport, CA - 27 km (17 miles) NNE (25 degrees)
Lakeport, CA - 32 km (20 miles) NNE (23 degrees)
Clearlake Oaks, CA - 32 km (20 miles) NNW (344 degrees)
Coordinates 39 deg. 18.4 min. N (39.307N), 122 deg. 46.4 min. W (122.773W)
Depth 9.26 km (5.80 miles)
Quality Fair
Location Quality Parameters Nst=5, Nph=5, Dmin=11.6 km, Rmss=0.03 sec, Erho=0.79 km, Erzz=1.45000005 km, Gp=162 degrees
Event ID# nc75333657
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For more information, see https://earthquake.usgs.gov

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