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 3:31:08 PM (PDT) on Tuesday, March 31, 2026.
The magnitude 1.4 event occurred 2 km (1 miles) E (94 degrees) of Pacheco, CA.
The hypocentral depth is 14 km ( 9 miles).


Magnitude 1.4 - duration magnitude (Md)
Time Tuesday, March 31, 2026 at 3:31:08 PM (PDT)
Tuesday, March 31, 2026 at 22:31:08 (UTC)
Distance from Pacheco, CA - 2 km (1 miles) E (94 degrees)
Pleasant Hill, CA - 4 km (2 miles) N (11 degrees)
Concord, CA - 4 km (2 miles) WNW (296 degrees)
Vine Hill, CA - 5 km (3 miles) SE (127 degrees)
Waldon, CA - 6 km (4 miles) N (3 degrees)
Coordinates 37 deg. 58.9 min. N (37.982N), 122 deg. 3.1 min. W (122.052W)
Depth 14.16 km (8.80 miles)
Quality Good
Location Quality Parameters Nst=11, Nph=11, Dmin=5.9 km, Rmss=0.06 sec, Erho=0.65 km, Erzz=1.02999997 km, Gp=92 degrees
Event ID# nc75336597
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