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 3:47:40 AM (PDT) on Sunday, September 7, 2025.
The magnitude 1.2 event occurred 6 km (4 miles) SW of Ridgemark, CA.
The hypocentral depth is 10 km ( 6 miles).


Magnitude 1.2 - duration magnitude (Md)
Time Sunday, September 7, 2025 at 3:47:40 AM (PDT)
Sunday, September 7, 2025 at 10:47:40 (UTC)
Distance from Ridgemark, CA - 6 km (4 miles) SW (215 degrees)
Hollister, CA - 9 km (6 miles) S (184 degrees)
San Juan Bautista, CA - 15 km (9 miles) SE (127 degrees)
Salinas, CA - 23 km (14 miles) ENE (66 degrees)
Prunedale, CA - 23 km (15 miles) E (92 degrees)
Coordinates 36 deg. 46.0 min. N (36.767N), 121 deg. 24.4 min. W (121.406W)
Depth 9.63 km (6.00 miles)
Quality Good
Location Quality Parameters Nst=10, Nph=10, Dmin=3.7 km, Rmss=0.06 sec, Erho=0.52 km, Erzz=0.800000012 km, Gp=127 degrees
Event ID# nc75234397
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