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

A micro earthquake occurred at 2:11:55 AM (PDT) on Tuesday, September 23, 2025.
The magnitude 1.4 event occurred 10 km (6 miles) WNW of Progreso, B.C., MX.
The hypocentral depth is 6 km ( 4 miles).


Magnitude 1.4 - local magnitude (Ml)
Time Tuesday, September 23, 2025 at 2:11:55 AM (PDT)
Tuesday, September 23, 2025 at 9:11:55 (UTC)
Distance from Progreso, B.C., MX - 10 km (6 miles) WNW (299 degrees)
Heber, CA - 18 km (11 miles) SW (229 degrees)
Calexico, CA - 18 km (11 miles) WSW (249 degrees)
Mexicali, B.C., MX - 20 km (12 miles) W (260 degrees)
El Centro, CA - 21 km (13 miles) SSW (211 degrees)
Coordinates 32 deg. 37.4 min. N (32.623N), 115 deg. 40.5 min. W (115.675W)
Depth 5.68 km (3.50 miles)
Quality Fair
Location Quality Parameters Nst=5, Nph=8, Dmin=5.6 km, Rmss=0.11 sec, Erho=0.43 km, Erzz=0.38 km, Gp=147 degrees
Event ID# ci37744036
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