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 4:16:19 PM (PDT) on Monday, August 17, 2026.
The magnitude 0.9 event occurred 6 km (4 miles) NNW of Lake Henshaw, CA.
The hypocentral depth is 14 km ( 9 miles).


Magnitude 0.9 - local magnitude (Ml)
Time Monday, August 17, 2026 at 4:16:19 PM (PDT)
Monday, August 17, 2026 at 23:16:19 (UTC)
Distance from Lake Henshaw, CA - 6 km (4 miles) NNW (341 degrees)
Palomar Observatory, CA - 10 km (6 miles) SE (134 degrees)
Warner Springs, CA - 14 km (9 miles) W (274 degrees)
Aguanga, CA - 18 km (11 miles) SSE (156 degrees)
Valley Center, CA - 25 km (15 miles) ENE (71 degrees)
Coordinates 33 deg. 17.5 min. N (33.292N), 116 deg. 47.0 min. W (116.784W)
Depth 14.33 km (8.90 miles)
Quality Good
Location Quality Parameters Nst=34, Nph=51, Dmin=6.6 km, Rmss=0.16 sec, Erho=0.21 km, Erzz=0.51 km, Gp=34 degrees
Event ID# ci41528784
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