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 10:11:20 AM (PST) on Wednesday, December 24, 2025.
The magnitude 1.5 event occurred 5 km (3 miles) SW of Ridgemark, CA.
The hypocentral depth is 6 km ( 3 miles).


Magnitude 1.5 - duration magnitude (Md)
Time Wednesday, December 24, 2025 at 10:11:20 AM (PST)
Wednesday, December 24, 2025 at 18:11:20 (UTC)
Distance from Ridgemark, CA - 5 km (3 miles) SW (228 degrees)
Hollister, CA - 7 km (4 miles) S (187 degrees)
San Juan Bautista, CA - 14 km (8 miles) ESE (121 degrees)
Prunedale, CA - 23 km (15 miles) E (88 degrees)
Salinas, CA - 24 km (15 miles) ENE (62 degrees)
Coordinates 36 deg. 47.0 min. N (36.783N), 121 deg. 24.5 min. W (121.408W)
Depth 5.54 km (3.40 miles)
Quality Good
Location Quality Parameters Nst=7, Nph=7, Dmin=4.1 km, Rmss=0.08 sec, Erho=0.6 km, Erzz=0.970000029 km, Gp=101 degrees
Event ID# nc75285781
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For more information, see https://earthquake.usgs.gov

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