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 2:21:32 AM (PDT) on Tuesday, July 22, 2025.
The magnitude 1.6 event occurred 9 km (5 miles) SSW of Ridgemark, CA.
The hypocentral depth is 10 km ( 6 miles).


Magnitude 1.6 - duration magnitude (Md)
Time Tuesday, July 22, 2025 at 2:21:32 AM (PDT)
Tuesday, July 22, 2025 at 9:21:32 (UTC)
Distance from Ridgemark, CA - 9 km (5 miles) SSW (199 degrees)
Hollister, CA - 12 km (7 miles) S (179 degrees)
San Juan Bautista, CA - 17 km (11 miles) SE (133 degrees)
Chualar, CA - 22 km (13 miles) NNE (30 degrees)
Salinas, CA - 23 km (14 miles) ENE (74 degrees)
Coordinates 36 deg. 44.4 min. N (36.739N), 121 deg. 23.8 min. W (121.397W)
Depth 9.66 km (6.00 miles)
Quality Excellent
Location Quality Parameters Nst=12, Nph=12, Dmin=5.3 km, Rmss=0.13 sec, Erho=0.59 km, Erzz=1.17999995 km, Gp=83 degrees
Event ID# nc75213352
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For more information, see https://earthquake.usgs.gov

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