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 4:31:44 AM (PST) on Wednesday, December 24, 2025.
The magnitude 2.5 event occurred 6 km (4 miles) SW of Ridgemark, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 2.5 - duration magnitude (Md)
Time Wednesday, December 24, 2025 at 4:31:44 AM (PST)
Wednesday, December 24, 2025 at 12:31:44 (UTC)
Distance from Ridgemark, CA - 6 km (4 miles) SW (224 degrees)
Hollister, CA - 8 km (5 miles) S (188 degrees)
San Juan Bautista, CA - 14 km (9 miles) SE (124 degrees)
Prunedale, CA - 23 km (14 miles) E (90 degrees)
Salinas, CA - 23 km (14 miles) ENE (64 degrees)
Coordinates 36 deg. 46.5 min. N (36.776N), 121 deg. 24.6 min. W (121.411W)
Depth 6.40 km (4.00 miles)
Quality Excellent
Location Quality Parameters Nst=30, Nph=30, Dmin=3.5 km, Rmss=0.14 sec, Erho=0.29 km, Erzz=0.660000026 km, Gp=47 degrees
Event ID# nc75285646
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