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 1:43:22 AM (PDT) on Tuesday, August 12, 2025.
The magnitude 1.5 event occurred 3 km (2 miles) SW of Loyola, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.5 - duration magnitude (Md)
Time Tuesday, August 12, 2025 at 1:43:22 AM (PDT)
Tuesday, August 12, 2025 at 8:43:22 (UTC)
Distance from Loyola, CA - 3 km (2 miles) SW (217 degrees)
Los Altos, CA - 6 km (4 miles) S (186 degrees)
Los Altos Hills, CA - 6 km (4 miles) SSE (166 degrees)
Mountain View, CA - 7 km (4 miles) SSW (208 degrees)
Cupertino, CA - 8 km (5 miles) W (275 degrees)
Coordinates 37 deg. 19.8 min. N (37.329N), 122 deg. 7.3 min. W (122.121W)
Depth 5.84 km (3.60 miles)
Quality Excellent
Location Quality Parameters Nst=14, Nph=13, Dmin=2.6 km, Rmss=0.07 sec, Erho=0.31 km, Erzz=0.479999989 km, Gp=55 degrees
Event ID# nc75222177
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