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 5:26:00 PM (PDT) on Friday, October 3, 2025.
The magnitude 1.7 event occurred 22 km (14 miles) NE (47 degrees) of Greenfield, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.7 - duration magnitude (Md)
Time Friday, October 3, 2025 at 5:26:00 PM (PDT)
Saturday, October 4, 2025 at 0:26:00 (UTC)
Distance from Greenfield, CA - 22 km (14 miles) NE (47 degrees)
Soledad, CA - 23 km (15 miles) E (82 degrees)
King City, CA - 28 km (17 miles) N (11 degrees)
Gonzales, CA - 34 km (21 miles) E (100 degrees)
Chualar, CA - 42 km (26 miles) ESE (108 degrees)
Coordinates 36 deg. 27.3 min. N (36.455N), 121 deg. 4.0 min. W (121.067W)
Depth 6.38 km (4.00 miles)
Quality Good
Location Quality Parameters Nst=16, Nph=16, Dmin=0.8 km, Rmss=0.14 sec, Erho=0.52 km, Erzz=0.980000019 km, Gp=93 degrees
Event ID# nc75244521
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For more information, see https://earthquake.usgs.gov

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