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 8:55:14 AM (PDT) on Sunday, March 23, 2025.
The magnitude 1.4 event occurred 3 km (2 miles) E (81 degrees) of Roseland, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 1.4 - duration magnitude (Md)
Time Sunday, March 23, 2025 at 8:55:14 AM (PDT)
Sunday, March 23, 2025 at 15:55:14 (UTC)
Distance from Roseland, CA - 3 km (2 miles) E (81 degrees)
Santa Rosa, CA - 3 km (2 miles) SSE (160 degrees)
Rohnert Park, CA - 10 km (6 miles) N (4 degrees)
Cotati, CA - 11 km (7 miles) N (6 degrees)
Larkfield-Wikiup, CA - 11 km (7 miles) SSE (153 degrees)
Coordinates 38 deg. 25.6 min. N (38.426N), 122 deg. 41.6 min. W (122.694W)
Depth 6.60 km (4.10 miles)
Quality Excellent
Location Quality Parameters Nst=35, Nph=35, Dmin=4.9 km, Rmss=0.08 sec, Erho=0.22 km, Erzz=0.61 km, Gp=45 degrees
Event ID# nc75153882
Additional Information Map
First Motion Focal Mechanism
Waveforms

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

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