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 4:06:53 PM (PDT) on Tuesday, August 19, 2025.
The magnitude 2.5 event occurred 2 km (1 miles) NW of Woodside, CA.
The hypocentral depth is 4 km ( 2 miles).


Magnitude 2.5 - duration magnitude (Md)
Time Tuesday, August 19, 2025 at 4:06:53 PM (PDT)
Tuesday, August 19, 2025 at 23:06:53 (UTC)
Distance from Woodside, CA - 2 km (1 miles) NW (311 degrees)
Emerald Lake Hills, CA - 3 km (2 miles) S (180 degrees)
Redwood City, CA - 6 km (4 miles) SSW (209 degrees)
West Menlo Park, CA - 6 km (4 miles) W (277 degrees)
Portola Valley, CA - 7 km (4 miles) NNW (335 degrees)
Coordinates 37 deg. 26.4 min. N (37.440N), 122 deg. 16.1 min. W (122.268W)
Depth 3.89 km (2.40 miles)
Quality Excellent
Location Quality Parameters Nst=64, Nph=60, Dmin=4.7 km, Rmss=0.10 sec, Erho=0.18 km, Erzz=0.400000006 km, Gp=84 degrees
Event ID# nc75226012
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