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 10:52:20 PM (PDT) on Monday, September 22, 2025.
The magnitude 1.1 event occurred 15 km (10 miles) E (99 degrees) of Simmler, CA.
The hypocentral depth is 8 km ( 5 miles).


Magnitude 1.1 - local magnitude (Ml)
Time Monday, September 22, 2025 at 10:52:20 PM (PDT)
Tuesday, September 23, 2025 at 5:52:20 (UTC)
Distance from Simmler, CA - 15 km (10 miles) E (99 degrees)
Buttonwillow, CA - 34 km (21 miles) WSW (257 degrees)
Taft, CA - 40 km (25 miles) WNW (301 degrees)
Maricopa, CA - 50 km (31 miles) NW (308 degrees)
Wasco, CA - 53 km (33 miles) WSW (237 degrees)
Coordinates 35 deg. 19.8 min. N (35.330N), 119 deg. 50.0 min. W (119.833W)
Depth 7.59 km (4.70 miles)
Quality Fair
Location Quality Parameters Nst=15, Nph=27, Dmin=7.6 km, Rmss=0.23 sec, Erho=0.63 km, Erzz=1.02 km, Gp=177 degrees
Event ID# ci40448522
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