Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

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


Version #2: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 12:52:52 PM (PDT) on Saturday, July 4, 2026.
The magnitude 1.5 event occurred 2 km (1 miles) SE of Pacifica, CA.
The hypocentral depth is 9 km ( 6 miles).


Magnitude 1.5 - duration magnitude (Md)
Time Saturday, July 4, 2026 at 12:52:52 PM (PDT)
Saturday, July 4, 2026 at 19:52:52 (UTC)
Distance from Pacifica, CA - 2 km (1 miles) SE (141 degrees)
San Bruno, CA - 6 km (4 miles) WSW (237 degrees)
Montara, CA - 7 km (5 miles) NNE (31 degrees)
South San Francisco, CA - 8 km (5 miles) SW (223 degrees)
Millbrae, CA - 8 km (5 miles) W (271 degrees)
Coordinates 37 deg. 36.0 min. N (37.599N), 122 deg. 28.3 min. W (122.472W)
Depth 9.42 km (5.90 miles)
Quality Excellent
Location Quality Parameters Nst=23, Nph=23, Dmin=3.0 km, Rmss=0.05 sec, Erho=0.24 km, Erzz=0.35 km, Gp=70 degrees
Event ID# nc75389506
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For more information, see https://earthquake.usgs.gov

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