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 10:19:44 PM (PDT) on Sunday, July 27, 2025.
The magnitude 1.2 event occurred 3 km (2 miles) SE of Mentone, CA.
The hypocentral depth is 17 km (11 miles).


Magnitude 1.2 - local magnitude (Ml)
Time Sunday, July 27, 2025 at 10:19:44 PM (PDT)
Monday, July 28, 2025 at 5:19:44 (UTC)
Distance from Mentone, CA - 3 km (2 miles) SE (145 degrees)
Redlands, CA - 6 km (4 miles) E (99 degrees)
Yucaipa, CA - 7 km (4 miles) WNW (282 degrees)
Calimesa, CA - 9 km (5 miles) NW (319 degrees)
Highland, CA - 13 km (8 miles) SE (136 degrees)
Coordinates 34 deg. 2.8 min. N (34.046N), 117 deg. 6.9 min. W (117.114W)
Depth 17.03 km (10.60 miles)
Quality Good
Location Quality Parameters Nst=26, Nph=42, Dmin=1.2 km, Rmss=0.22 sec, Erho=0.34 km, Erzz=0.79 km, Gp=88 degrees
Event ID# ci41034103
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