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 #6: This report supersedes any earlier reports of this event. This event has been reviewed by a seismologist.

A micro earthquake occurred at 7:33:14 PM (PDT) on Tuesday, August 19, 2025.
The magnitude 1.0 event occurred 7 km (5 miles) NNE (23 degrees) of Santa Clarita, CA.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.0 - local magnitude (Ml)
Time Tuesday, August 19, 2025 at 7:33:14 PM (PDT)
Wednesday, August 20, 2025 at 2:33:14 (UTC)
Distance from Santa Clarita, CA - 7 km (5 miles) NNE (23 degrees)
Valencia, CA - 9 km (6 miles) ENE (74 degrees)
Castaic, CA - 14 km (8 miles) E (95 degrees)
Agua Dulce, CA - 14 km (9 miles) W (261 degrees)
Sylmar, CA - 19 km (12 miles) N (353 degrees)
Coordinates 34 deg. 28.6 min. N (34.477N), 118 deg. 28.5 min. W (118.474W)
Depth 6.17 km (3.80 miles)
Quality Good
Location Quality Parameters Nst=26, Nph=43, Dmin=5.5 km, Rmss=0.17 sec, Erho=0.25 km, Erzz=0.73 km, Gp=49 degrees
Event ID# ci40403554
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