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 8:40:27 PM (PDT) on Thursday, July 24, 2025.
The magnitude 1.7 event occurred 4 km (2 miles) NW of Redwood Valley, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.7 - duration magnitude (Md)
Time Thursday, July 24, 2025 at 8:40:27 PM (PDT)
Friday, July 25, 2025 at 3:40:27 (UTC)
Distance from Redwood Valley, CA - 4 km (2 miles) NW (325 degrees)
Ukiah, CA - 16 km (10 miles) N (354 degrees)
Willits, CA - 17 km (10 miles) SE (140 degrees)
Talmage, CA - 19 km (12 miles) NNW (343 degrees)
Brooktrails, CA - 21 km (13 miles) SE (141 degrees)
Coordinates 39 deg. 17.6 min. N (39.294N), 123 deg. 13.8 min. W (123.230W)
Depth 6.40 km (4.00 miles)
Quality Good
Location Quality Parameters Nst=14, Nph=14, Dmin=11.6 km, Rmss=0.07 sec, Erho=0.27 km, Erzz=1.22000003 km, Gp=69 degrees
Event ID# nc75214752
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For more information, see https://earthquake.usgs.gov

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