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

A micro earthquake occurred at 4:33:21 PM (PDT) on Wednesday, August 5, 2026.
The magnitude 1.0 event occurred 12 km (7 miles) N of Castaic, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 1.0 - local magnitude (Ml)
Time Wednesday, August 5, 2026 at 4:33:21 PM (PDT)
Wednesday, August 5, 2026 at 23:33:21 (UTC)
Distance from Castaic, CA - 12 km (7 miles) N (352 degrees)
Valencia, CA - 17 km (10 miles) NNW (337 degrees)
Lake Hughes, CA - 20 km (13 miles) WSW (242 degrees)
Neenach, CA - 21 km (13 miles) S (189 degrees)
Santa Clarita, CA - 23 km (14 miles) NNW (328 degrees)
Coordinates 34 deg. 35.6 min. N (34.593N), 118 deg. 38.4 min. W (118.641W)
Depth 6.86 km (4.30 miles)
Quality Good
Location Quality Parameters Nst=26, Nph=41, Dmin=8.0 km, Rmss=0.17 sec, Erho=0.24 km, Erzz=0.5 km, Gp=55 degrees
Event ID# ci40666906
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