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 7:06:56 AM (PDT) on Saturday, August 2, 2025.
The magnitude 1.5 event occurred 14 km (8 miles) ESE of Angwin, CA.
The hypocentral depth is -0.33 km (-0.20 miles).


Magnitude 1.5 - duration magnitude (Md)
Time Saturday, August 2, 2025 at 7:06:56 AM (PDT)
Saturday, August 2, 2025 at 14:06:56 (UTC)
Distance from Angwin, CA - 14 km (8 miles) ESE (108 degrees)
Saint Helena, CA - 15 km (9 miles) ENE (76 degrees)
Yountville, CA - 16 km (10 miles) NNE (19 degrees)
Calistoga, CA - 25 km (15 miles) E (101 degrees)
Kenwood, CA - 25 km (16 miles) ENE (57 degrees)
Coordinates 38 deg. 32.2 min. N (38.537N), 122 deg. 18.1 min. W (122.301W)
Depth -0.33 km (-0.20 miles)
Quality Good
Location Quality Parameters Nst=12, Nph=12, Dmin=5.8 km, Rmss=0.22 sec, Erho=0.61 km, Erzz=2.61999989 km, Gp=101 degrees
Event ID# nc75218327
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