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 5:05:20 PM (PDT) on Sunday, August 23, 2026.
The magnitude 1.2 event occurred 1 km (1 miles) ESE of Pinole, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.2 - duration magnitude (Md)
Time Sunday, August 23, 2026 at 5:05:20 PM (PDT)
Monday, August 24, 2026 at 0:05:20 (UTC)
Distance from Pinole, CA - 1 km (1 miles) ESE (118 degrees)
Hercules, CA - 2 km (1 miles) S (176 degrees)
Tara Hills, CA - 3 km (2 miles) ENE (75 degrees)
El Sobrante, CA - 3 km (2 miles) NNE (16 degrees)
Montalvin, CA - 4 km (3 miles) E (84 degrees)
Coordinates 37 deg. 60.0 min. N (38.000N), 122 deg. 17.2 min. W (122.287W)
Depth 5.71 km (3.50 miles)
Quality Good
Location Quality Parameters Nst=13, Nph=13, Dmin=6.4 km, Rmss=0.06 sec, Erho=0.26 km, Erzz=0.959999979 km, Gp=81 degrees
Event ID# nc75423907
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