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 11:20:38 AM (PDT) on Sunday, September 7, 2025.
The magnitude 1.3 event occurred 4 km (3 miles) NNE (12 degrees) of Pleasanton, CA.
The hypocentral depth is 11 km ( 7 miles).


Magnitude 1.3 - duration magnitude (Md)
Time Sunday, September 7, 2025 at 11:20:38 AM (PDT)
Sunday, September 7, 2025 at 18:20:38 (UTC)
Distance from Pleasanton, CA - 4 km (3 miles) NNE (12 degrees)
Dublin, CA - 6 km (4 miles) E (90 degrees)
Livermore, CA - 9 km (5 miles) WNW (285 degrees)
San Ramon, CA - 13 km (8 miles) SE (131 degrees)
Blackhawk, CA - 14 km (9 miles) SSE (164 degrees)
Coordinates 37 deg. 42.1 min. N (37.702N), 121 deg. 51.9 min. W (121.865W)
Depth 11.16 km (6.90 miles)
Quality Excellent
Location Quality Parameters Nst=32, Nph=35, Dmin=4.0 km, Rmss=0.13 sec, Erho=0.23 km, Erzz=0.4 km, Gp=42 degrees
Event ID# nc75234612
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For more information, see https://earthquake.usgs.gov

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