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 3:05:14 AM (PDT) on Thursday, August 28, 2025.
The magnitude 2.2 event occurred 5 km (3 miles) E (86 degrees) of Santa Rosa, CA.
The hypocentral depth is 10 km ( 6 miles).


Magnitude 2.2 - duration magnitude (Md)
Time Thursday, August 28, 2025 at 3:05:14 AM (PDT)
Thursday, August 28, 2025 at 10:05:14 (UTC)
Distance from Santa Rosa, CA - 5 km (3 miles) E (86 degrees)
Roseland, CA - 8 km (5 miles) ENE (66 degrees)
Kenwood, CA - 10 km (6 miles) WNW (296 degrees)
Larkfield-Wikiup, CA - 12 km (7 miles) SE (126 degrees)
Rohnert Park, CA - 13 km (8 miles) NNE (22 degrees)
Coordinates 38 deg. 27.1 min. N (38.451N), 122 deg. 38.6 min. W (122.644W)
Depth 10.11 km (6.30 miles)
Quality Good
Location Quality Parameters Nst=60, Nph=58, Dmin=12.8 km, Rmss=0.14 sec, Erho=0.19 km, Erzz=0.610000014 km, Gp=29 degrees
Event ID# nc75229772
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For more information, see https://earthquake.usgs.gov

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