Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #3: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 9:07:22 AM (PDT) on Thursday, August 13, 2026.
The magnitude 2.8 event occurred 4 km (2 miles) N (10 degrees) of San Leandro, CA.
The hypocentral depth is 6 km ( 3 miles).


Magnitude 2.8 - duration magnitude (Md)
Time Thursday, August 13, 2026 at 9:07:22 AM (PDT)
Thursday, August 13, 2026 at 16:07:22 (UTC)
Distance from San Leandro, CA - 4 km (2 miles) N (10 degrees)
Alameda, CA - 8 km (5 miles) E (96 degrees)
Oakland, CA - 8 km (5 miles) ESE (122 degrees)
Ashland, CA - 8 km (5 miles) NNW (336 degrees)
San Lorenzo, CA - 9 km (5 miles) NNW (346 degrees)
Coordinates 37 deg. 45.4 min. N (37.757N), 122 deg. 8.9 min. W (122.149W)
Depth 5.50 km (3.40 miles)
Quality Excellent
Location Quality Parameters Nst=147, Nph=164, Dmin=2.3 km, Rmss=0.12 sec, Erho=0.1 km, Erzz=0.16 km, Gp=28 degrees
Event ID# nc75417582
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For more information, see https://earthquake.usgs.gov

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