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

A micro earthquake occurred at 6:48:51 AM (PDT) on Monday, October 20, 2025.
The magnitude 0.7 event occurred 7 km (5 miles) WSW of Palomar Observatory, CA.
The hypocentral depth is 21 km (13 miles).


Magnitude 0.7 - local magnitude (Ml)
Time Monday, October 20, 2025 at 6:48:51 AM (PDT)
Monday, October 20, 2025 at 13:48:51 (UTC)
Distance from Palomar Observatory, CA - 7 km (5 miles) WSW (250 degrees)
Pala, CA - 13 km (8 miles) ESE (106 degrees)
Aguanga, CA - 14 km (9 miles) SSW (209 degrees)
Valley Center, CA - 16 km (10 miles) NE (35 degrees)
Lake Henshaw, CA - 19 km (12 miles) WNW (302 degrees)
Coordinates 33 deg. 20.0 min. N (33.333N), 116 deg. 56.3 min. W (116.939W)
Depth 20.82 km (12.90 miles)
Quality Excellent
Location Quality Parameters Nst=31, Nph=51, Dmin=7.5 km, Rmss=0.13 sec, Erho=0.17 km, Erzz=0.46 km, Gp=30 degrees
Event ID# ci41111655
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