Recent Earthquakes in California and Nevada


== PRELIMINARY EARTHQUAKE REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California


Version #3: 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 11:13:03 PM (PDT) on Sunday, August 31, 2025.
The magnitude 1.4 event occurred 9 km (6 miles) N of Acton, CA.
The hypocentral depth is 12 km ( 7 miles).


Magnitude 1.4 - local magnitude (Ml)
Time Sunday, August 31, 2025 at 11:13:03 PM (PDT)
Monday, September 1, 2025 at 6:13:03 (UTC)
Distance from Acton, CA - 9 km (6 miles) N (358 degrees)
Vincent, CA - 10 km (6 miles) NW (307 degrees)
Palmdale, CA - 10 km (6 miles) WSW (251 degrees)
Quartz Hill, CA - 10 km (7 miles) S (171 degrees)
Leona Valley, CA - 11 km (7 miles) SE (133 degrees)
Coordinates 34 deg. 33.1 min. N (34.552N), 118 deg. 12.0 min. W (118.201W)
Depth 11.81 km (7.30 miles)
Quality Good
Location Quality Parameters Nst=56, Nph=96, Dmin=5.7 km, Rmss=0.18 sec, Erho=0.16 km, Erzz=0.36 km, Gp=30 degrees
Event ID# ci41280496
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