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 10:57:08 AM (PDT) on Sunday, August 24, 2025.
The magnitude 1.9 event occurred 13 km (8 miles) NNW of Rio Vista, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.9 - duration magnitude (Md)
Time Sunday, August 24, 2025 at 10:57:08 AM (PDT)
Sunday, August 24, 2025 at 17:57:08 (UTC)
Distance from Rio Vista, CA - 13 km (8 miles) NNW (328 degrees)
Vacaville, CA - 22 km (14 miles) ESE (121 degrees)
Dixon, CA - 22 km (14 miles) SSE (167 degrees)
Walnut Grove, CA - 22 km (14 miles) W (273 degrees)
Suisun, CA - 24 km (15 miles) E (86 degrees)
Coordinates 38 deg. 15.2 min. N (38.254N), 121 deg. 46.1 min. W (121.769W)
Depth 6.44 km (4.00 miles)
Quality Fair
Location Quality Parameters Nst=11, Nph=11, Dmin=57.9 km, Rmss=0.27 sec, Erho=1.07 km, Erzz=1.74000001 km, Gp=173 degrees
Event ID# nc75228142
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