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

A micro earthquake occurred at 3:43:43 PM (PDT) on Wednesday, October 28, 2026.
The magnitude 1.0 event occurred 4 km (2 miles) SW of Redlands, CA.
The hypocentral depth is 7 km ( 4 miles).


Magnitude 1.0 - local magnitude (Ml)
Time Wednesday, October 28, 2026 at 3:43:43 PM (PDT)
Wednesday, October 28, 2026 at 22:43:43 (UTC)
Distance from Redlands, CA - 4 km (2 miles) SW (221 degrees)
Loma Linda, CA - 5 km (3 miles) ESE (111 degrees)
Mentone, CA - 8 km (5 miles) WSW (238 degrees)
Grand Terrace, CA - 10 km (6 miles) E (92 degrees)
Colton, CA - 11 km (7 miles) ESE (116 degrees)
Coordinates 34 deg. 1.9 min. N (34.031N), 117 deg. 12.5 min. W (117.208W)
Depth 6.61 km (4.10 miles)
Quality Good
Location Quality Parameters Nst=42, Nph=67, Dmin=8.9 km, Rmss=0.16 sec, Erho=0.16 km, Erzz=0.49 km, Gp=37 degrees
Event ID# ci41568480
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