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 11:45:16 AM (PDT) on Tuesday, August 5, 2025.
The magnitude 1.4 event occurred 2 km (1 miles) NW of Danville, CA.
The hypocentral depth is 24 km (15 miles).


Magnitude 1.4 - duration magnitude (Md)
Time Tuesday, August 5, 2025 at 11:45:16 AM (PDT)
Tuesday, August 5, 2025 at 18:45:16 (UTC)
Distance from Danville, CA - 2 km (1 miles) NW (305 degrees)
Alamo, CA - 2 km (2 miles) SSE (149 degrees)
Diablo, CA - 5 km (3 miles) W (266 degrees)
San Ramon, CA - 7 km (4 miles) NNW (329 degrees)
Saranap, CA - 8 km (5 miles) SE (139 degrees)
Coordinates 37 deg. 49.9 min. N (37.831N), 122 deg. 1.1 min. W (122.018W)
Depth 23.96 km (14.90 miles)
Quality Fair
Location Quality Parameters Nst=11, Nph=11, Dmin=4.3 km, Rmss=0.33 sec, Erho=2.44 km, Erzz=2.4000001 km, Gp=158 degrees
Event ID# nc75219657
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