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 #4: 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 2:32:16 PM (PDT) on Monday, September 8, 2025.
The magnitude 1.2 event occurred 4 km (3 miles) ESE of Yorba Linda, CA.
The hypocentral depth is 9 km ( 6 miles).


Magnitude 1.2 - local magnitude (Ml)
Time Monday, September 8, 2025 at 2:32:16 PM (PDT)
Monday, September 8, 2025 at 21:32:16 (UTC)
Distance from Yorba Linda, CA - 4 km (3 miles) ESE (116 degrees)
Villa Park, CA - 7 km (5 miles) NNE (31 degrees)
Placentia, CA - 9 km (6 miles) E (90 degrees)
Orange, CA - 9 km (6 miles) NE (36 degrees)
Anaheim, CA - 12 km (7 miles) ENE (70 degrees)
Coordinates 33 deg. 52.3 min. N (33.872N), 117 deg. 46.3 min. W (117.772W)
Depth 9.16 km (5.70 miles)
Quality Good
Location Quality Parameters Nst=28, Nph=47, Dmin=5.1 km, Rmss=0.18 sec, Erho=0.27 km, Erzz=0.43 km, Gp=49 degrees
Event ID# ci41286488
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