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 11:58:09 PM (PDT) on Saturday, July 11, 2026.
The magnitude 1.8 event occurred 5 km (3 miles) S of Pittsburg, CA.
The hypocentral depth is 16 km (10 miles).


Magnitude 1.8 - duration magnitude (Md)
Time Saturday, July 11, 2026 at 11:58:09 PM (PDT)
Sunday, July 12, 2026 at 6:58:09 (UTC)
Distance from Pittsburg, CA - 5 km (3 miles) S (172 degrees)
Clayton, CA - 7 km (4 miles) NE (47 degrees)
Antioch, CA - 7 km (4 miles) WSW (249 degrees)
Bay Point, CA - 9 km (6 miles) SE (124 degrees)
Concord, CA - 12 km (8 miles) E (82 degrees)
Coordinates 37 deg. 59.0 min. N (37.984N), 121 deg. 52.6 min. W (121.877W)
Depth 15.92 km (9.90 miles)
Quality Excellent
Location Quality Parameters Nst=24, Nph=24, Dmin=3.5 km, Rmss=0.11 sec, Erho=0.36 km, Erzz=0.74000001 km, Gp=87 degrees
Event ID# nc75394331
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For more information, see https://earthquake.usgs.gov

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