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 11:40:48 AM (PST) on Sunday, November 9, 2025.
The magnitude 2.0 event occurred 4 km (2 miles) SE of San Ramon, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 2.0 - duration magnitude (Md)
Time Sunday, November 9, 2025 at 11:40:48 AM (PST)
Sunday, November 9, 2025 at 19:40:48 (UTC)
Distance from San Ramon, CA - 4 km (2 miles) SE (131 degrees)
Dublin, CA - 6 km (4 miles) N (351 degrees)
Danville, CA - 8 km (5 miles) SE (146 degrees)
Blackhawk, CA - 8 km (5 miles) SSW (207 degrees)
Diablo, CA - 9 km (5 miles) S (174 degrees)
Coordinates 37 deg. 45.5 min. N (37.758N), 121 deg. 56.8 min. W (121.947W)
Depth 8.16 km (5.10 miles)
Quality Excellent
Location Quality Parameters Nst=25, Nph=25, Dmin=3.4 km, Rmss=0.07 sec, Erho=0.19 km, Erzz=0.469999999 km, Gp=44 degrees
Event ID# nc75261166
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For more information, see https://earthquake.usgs.gov

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