Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

U.S. Geological Survey, Menlo Park, California
U.C. Berkeley Seismological Laboratory, Berkeley, California


Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 2:34:09 AM (PDT) on Sunday, March 23, 2025.
The magnitude 1.5 event occurred 12 km (7 miles) NNE (31 degrees) of Napa, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 1.5 - duration magnitude (Md)
Time Sunday, March 23, 2025 at 2:34:09 AM (PDT)
Sunday, March 23, 2025 at 9:34:09 (UTC)
Distance from Napa, CA - 12 km (7 miles) NNE (31 degrees)
Yountville, CA - 13 km (8 miles) E (98 degrees)
Green Valley, CA - 16 km (10 miles) NNW (342 degrees)
Vacaville, CA - 20 km (13 miles) W (279 degrees)
Fairfield, CA - 22 km (13 miles) NW (315 degrees)
Coordinates 38 deg. 23.2 min. N (38.386N), 122 deg. 13.0 min. W (122.217W)
Depth 8.13 km (5.10 miles)
Quality Good
Location Quality Parameters Nst=39, Nph=40, Dmin=1.9 km, Rmss=0.16 sec, Erho=0.24 km, Erzz=0.5 km, Gp=65 degrees
Event ID# nc75153712
Additional Information Map
First Motion Focal Mechanism
Waveforms

For more information, see https://earthquake.usgs.gov

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