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 9:11:26 AM (PDT) on Monday, September 22, 2025.
The magnitude 1.1 event occurred 9 km (5 miles) W of Holtville, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 1.1 - local magnitude (Ml)
Time Monday, September 22, 2025 at 9:11:26 AM (PDT)
Monday, September 22, 2025 at 16:11:26 (UTC)
Distance from Holtville, CA - 9 km (5 miles) W (278 degrees)
El Centro, CA - 9 km (6 miles) ENE (65 degrees)
Imperial, CA - 10 km (6 miles) ESE (107 degrees)
Heber, CA - 11 km (7 miles) NNE (28 degrees)
Calexico, CA - 16 km (10 miles) N (9 degrees)
Coordinates 32 deg. 49.3 min. N (32.822N), 115 deg. 28.3 min. W (115.472W)
Depth 8.17 km (5.10 miles)
Quality Good
Location Quality Parameters Nst=21, Nph=29, Dmin=3.0 km, Rmss=0.24 sec, Erho=0.55 km, Erzz=0.68 km, Gp=66 degrees
Event ID# ci40448058
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