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 9:49:04 PM (PDT) on Sunday, September 27, 2026.
The magnitude 2.1 event occurred 10 km (6 miles) NNE (22 degrees) of East Foothills, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 2.1 - duration magnitude (Md)
Time Sunday, September 27, 2026 at 9:49:04 PM (PDT)
Monday, September 28, 2026 at 4:49:04 (UTC)
Distance from East Foothills, CA - 10 km (6 miles) NNE (22 degrees)
Alum Rock, CA - 12 km (7 miles) NNE (23 degrees)
Milpitas, CA - 12 km (8 miles) ENE (72 degrees)
San Jose, CA - 17 km (11 miles) NE (38 degrees)
Buena Vista, CA - 20 km (12 miles) NE (39 degrees)
Coordinates 37 deg. 27.7 min. N (37.462N), 121 deg. 46.5 min. W (121.775W)
Depth 5.56 km (3.50 miles)
Quality Excellent
Location Quality Parameters Nst=43, Nph=41, Dmin=2.6 km, Rmss=0.06 sec, Erho=0.14 km, Erzz=0.330000013 km, Gp=37 degrees
Event ID# nc75443632
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