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 6:00:44 AM (PDT) on Sunday, September 28, 2025.
The magnitude 1.0 event occurred 39 km (24 miles) WSW of Greenfield, CA.
The hypocentral depth is 13 km ( 8 miles).


Magnitude 1.0 - duration magnitude (Md)
Time Sunday, September 28, 2025 at 6:00:44 AM (PDT)
Sunday, September 28, 2025 at 13:00:44 (UTC)
Distance from Greenfield, CA - 39 km (24 miles) WSW (242 degrees)
Soledad, CA - 40 km (25 miles) SW (222 degrees)
Carmel Valley Village, CA - 41 km (25 miles) SSE (162 degrees)
Gonzales, CA - 42 km (26 miles) SSW (203 degrees)
King City, CA - 45 km (28 miles) W (263 degrees)
Coordinates 36 deg. 9.5 min. N (36.158N), 121 deg. 37.5 min. W (121.625W)
Depth 13.17 km (8.20 miles)
Quality Fair
Location Quality Parameters Nst=22, Nph=28, Dmin=2.9 km, Rmss=0.16 sec, Erho=0.39 km, Erzz=0.91 km, Gp=139 degrees
Event ID# nc75242932
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