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 12:48:10 PM (PDT) on Thursday, August 7, 2025.
The magnitude 1.0 event occurred 1 km (1 miles) NE (48 degrees) of Danville, CA.
The hypocentral depth is 16 km (10 miles).


Magnitude 1.0 - duration magnitude (Md)
Time Thursday, August 7, 2025 at 12:48:10 PM (PDT)
Thursday, August 7, 2025 at 19:48:10 (UTC)
Distance from Danville, CA - 1 km (1 miles) NE (48 degrees)
Diablo, CA - 3 km (2 miles) WSW (256 degrees)
Alamo, CA - 4 km (3 miles) ESE (123 degrees)
San Ramon, CA - 6 km (3 miles) N (349 degrees)
Blackhawk, CA - 7 km (5 miles) W (277 degrees)
Coordinates 37 deg. 49.7 min. N (37.828N), 121 deg. 59.4 min. W (121.990W)
Depth 16.50 km (10.30 miles)
Quality Fair
Location Quality Parameters Nst=7, Nph=7, Dmin=6.5 km, Rmss=0.05 sec, Erho=2.37 km, Erzz=1.5 km, Gp=176 degrees
Event ID# nc75220497
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For more information, see https://earthquake.usgs.gov

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