Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 0:21:19 AM (PDT) on Saturday, August 9, 2025.
The magnitude 0.9 event occurred 11 km (7 miles) NNE (31 degrees) of Day Valley, CA.
The hypocentral depth is 10 km ( 6 miles).


Magnitude 0.9 - duration magnitude (Md)
Time Saturday, August 9, 2025 at 0:21:19 AM (PDT)
Saturday, August 9, 2025 at 7:21:19 (UTC)
Distance from Day Valley, CA - 11 km (7 miles) NNE (31 degrees)
Morgan Hill, CA - 13 km (8 miles) W (264 degrees)
Corralitos, CA - 14 km (9 miles) N (2 degrees)
Lexington Hills, CA - 16 km (10 miles) ESE (109 degrees)
Amesti, CA - 17 km (11 miles) N (354 degrees)
Coordinates 37 deg. 7.1 min. N (37.118N), 121 deg. 48.0 min. W (121.800W)
Depth 9.85 km (6.10 miles)
Quality Excellent
Location Quality Parameters Nst=15, Nph=19, Dmin=7.1 km, Rmss=0.06 sec, Erho=0.25 km, Erzz=0.53 km, Gp=63 degrees
Event ID# nc75221032
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