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 2:58:48 AM (PDT) on Sunday, September 28, 2025.
The magnitude 1.8 event occurred 5 km (3 miles) S of San Juan Bautista, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 1.8 - duration magnitude (Md)
Time Sunday, September 28, 2025 at 2:58:48 AM (PDT)
Sunday, September 28, 2025 at 9:58:48 (UTC)
Distance from San Juan Bautista, CA - 5 km (3 miles) S (174 degrees)
Prunedale, CA - 13 km (8 miles) ENE (76 degrees)
Hollister, CA - 13 km (8 miles) WSW (248 degrees)
Aromas, CA - 14 km (8 miles) SE (134 degrees)
Ridgemark, CA - 15 km (9 miles) W (266 degrees)
Coordinates 36 deg. 48.2 min. N (36.804N), 121 deg. 31.9 min. W (121.532W)
Depth 5.13 km (3.20 miles)
Quality Good
Location Quality Parameters Nst=28, Nph=28, Dmin=3.0 km, Rmss=0.17 sec, Erho=0.38 km, Erzz=0.519999981 km, Gp=71 degrees
Event ID# nc75242902
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