Recent Earthquakes in California and Nevada

== PRELIMINARY EARTHQUAKE REPORT ==

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

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

A micro earthquake occurred at 11:05:09 AM (PDT) on Sunday, September 7, 2025.
The magnitude 2.1 event occurred 5 km (3 miles) N (10 degrees) of Pleasanton, CA.
The hypocentral depth is 12 km ( 7 miles).

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Magnitude	2.1 - duration magnitude (Md)
Time	Sunday, September 7, 2025 at 11:05:09 AM (PDT) Sunday, September 7, 2025 at 18:05:09 (UTC)
Distance from	Pleasanton, CA - 5 km (3 miles) N (10 degrees) Dublin, CA - 6 km (4 miles) E (87 degrees) Livermore, CA - 9 km (6 miles) WNW (287 degrees) San Ramon, CA - 13 km (8 miles) SE (130 degrees) Blackhawk, CA - 13 km (8 miles) SSE (164 degrees)
Coordinates	37 deg. 42.3 min. N (37.706N), 121 deg. 51.9 min. W (121.865W)
Depth	11.60 km (7.20 miles)
Quality	Excellent
Location Quality Parameters	Nst=80, Nph=89, Dmin=4.4 km, Rmss=0.13 sec, Erho=0.12 km, Erzz=0.25 km, Gp=26 degrees
Event ID#	nc75234597
Additional Information	Map

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

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