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 2:01:08 AM (PDT) on Tuesday, September 23, 2025.
The magnitude 1.3 event occurred 17 km (10 miles) WNW of Progreso, B.C., MX.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 1.3 - local magnitude (Ml)
Time Tuesday, September 23, 2025 at 2:01:08 AM (PDT)
Tuesday, September 23, 2025 at 9:01:08 (UTC)
Distance from Progreso, B.C., MX - 17 km (10 miles) WNW (299 degrees)
Heber, CA - 22 km (13 miles) WSW (246 degrees)
El Centro, CA - 23 km (14 miles) SW (228 degrees)
Calexico, CA - 23 km (14 miles) W (262 degrees)
Ocotillo, CA - 25 km (16 miles) ESE (111 degrees)
Coordinates 32 deg. 39.1 min. N (32.652N), 115 deg. 44.4 min. W (115.740W)
Depth 4.95 km (3.10 miles)
Quality Good
Location Quality Parameters Nst=27, Nph=44, Dmin=1.3 km, Rmss=0.19 sec, Erho=0.27 km, Erzz=0.4 km, Gp=76 degrees
Event ID# ci40448586
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