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 2:45:06 PM (PDT) on Sunday, August 9, 2026.
The magnitude 1.6 event occurred 41 km (25 miles) WNW of Rancho Tehama Reserve, CA.
The hypocentral depth is -1 km (-0.40 miles).


Magnitude 1.6 - duration magnitude (Md)
Time Sunday, August 9, 2026 at 2:45:06 PM (PDT)
Sunday, August 9, 2026 at 21:45:06 (UTC)
Distance from Rancho Tehama Reserve, CA - 41 km (25 miles) WNW (296 degrees)
Red Bluff, CA - 51 km (31 miles) W (270 degrees)
Hayfork, CA - 52 km (32 miles) SE (145 degrees)
Covelo, CA - 55 km (34 miles) NE (40 degrees)
Shasta, CA - 55 km (34 miles) SSW (212 degrees)
Coordinates 40 deg. 10.5 min. N (40.175N), 122 deg. 49.9 min. W (122.832W)
Depth -0.61 km (-0.40 miles)
Quality Fair
Location Quality Parameters Nst=7, Nph=7, Dmin=26.7 km, Rmss=0.32 sec, Erho=1.7 km, Erzz=15.8000002 km, Gp=123 degrees
Event ID# nc75414812
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