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 10:05:33 PM (PDT) on Wednesday, March 18, 2026.
The magnitude 0.9 event occurred 12 km (8 miles) SE of Ridgemark, CA.
The hypocentral depth is 9 km ( 6 miles).


Magnitude 0.9 - duration magnitude (Md)
Time Wednesday, March 18, 2026 at 10:05:33 PM (PDT)
Thursday, March 19, 2026 at 5:05:33 (UTC)
Distance from Ridgemark, CA - 12 km (8 miles) SE (125 degrees)
Hollister, CA - 17 km (11 miles) SE (130 degrees)
San Juan Bautista, CA - 28 km (17 miles) ESE (113 degrees)
Chualar, CA - 31 km (19 miles) NE (50 degrees)
Gonzales, CA - 32 km (20 miles) NNE (32 degrees)
Coordinates 36 deg. 44.9 min. N (36.749N), 121 deg. 15.1 min. W (121.252W)
Depth 9.12 km (5.70 miles)
Quality Fair
Location Quality Parameters Nst=8, Nph=8, Dmin=4.8 km, Rmss=0.05 sec, Erho=0.48 km, Erzz=2.4000001 km, Gp=143 degrees
Event ID# nc75329892
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For more information, see https://earthquake.usgs.gov

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