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 8:06:31 PM (PDT) on Saturday, August 23, 2025.
The magnitude 1.6 event occurred 15 km (9 miles) E (84 degrees) of Seven Trees, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.6 - duration magnitude (Md)
Time Saturday, August 23, 2025 at 8:06:31 PM (PDT)
Sunday, August 24, 2025 at 3:06:31 (UTC)
Distance from Seven Trees, CA - 15 km (9 miles) E (84 degrees)
Alum Rock, CA - 16 km (10 miles) ESE (117 degrees)
East Foothills, CA - 16 km (10 miles) SE (124 degrees)
Morgan Hill, CA - 19 km (12 miles) N (356 degrees)
San Jose, CA - 20 km (13 miles) ESE (102 degrees)
Coordinates 37 deg. 18.1 min. N (37.301N), 121 deg. 40.2 min. W (121.670W)
Depth 6.27 km (3.90 miles)
Quality Excellent
Location Quality Parameters Nst=29, Nph=28, Dmin=4.7 km, Rmss=0.06 sec, Erho=0.16 km, Erzz=0.49000001 km, Gp=48 degrees
Event ID# nc75227897
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For more information, see https://earthquake.usgs.gov

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