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 6:12:25 PM (PDT) on Tuesday, August 5, 2025.
The magnitude 1.7 event occurred 4 km (2 miles) WNW of Shasta Lake, CA.
The hypocentral depth is 25 km (16 miles).


Magnitude 1.7 - duration magnitude (Md)
Time Tuesday, August 5, 2025 at 6:12:25 PM (PDT)
Wednesday, August 6, 2025 at 1:12:25 (UTC)
Distance from Shasta Lake, CA - 4 km (2 miles) WNW (288 degrees)
Central Valley (historical), CA - 4 km (2 miles) WNW (289 degrees)
Shasta, CA - 12 km (8 miles) NNE (33 degrees)
Redding, CA - 13 km (8 miles) NNW (344 degrees)
Bella Vista, CA - 16 km (10 miles) WNW (290 degrees)
Coordinates 40 deg. 41.5 min. N (40.691N), 122 deg. 24.9 min. W (122.414W)
Depth 25.35 km (15.80 miles)
Quality Good
Location Quality Parameters Nst=6, Nph=5, Dmin=10.0 km, Rmss=0.01 sec, Erho=0.99 km, Erzz=2.42000008 km, Gp=118 degrees
Event ID# nc75219792
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For more information, see https://earthquake.usgs.gov

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