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

A micro earthquake occurred at 4:42:50 PM (PDT) on Monday, March 16, 2026.
The magnitude 1.7 event occurred 3 km (2 miles) NNW of Altadena, CA.
The hypocentral depth is 9 km ( 6 miles).


Magnitude 1.7 - local magnitude (Ml)
Time Monday, March 16, 2026 at 4:42:50 PM (PDT)
Monday, March 16, 2026 at 23:42:50 (UTC)
Distance from Altadena, CA - 3 km (2 miles) NNW (339 degrees)
La Canada Flintridge, CA - 4 km (3 miles) ENE (70 degrees)
Pasadena, CA - 6 km (4 miles) N (351 degrees)
Caltech, Pasadena, CA - 8 km (5 miles) N (349 degrees)
La Crescenta-Montrose, CA - 9 km (5 miles) ESE (104 degrees)
Coordinates 34 deg. 12.8 min. N (34.213N), 118 deg. 8.5 min. W (118.142W)
Depth 9.23 km (5.70 miles)
Quality Good
Location Quality Parameters Nst=79, Nph=137, Dmin=4.4 km, Rmss=0.19 sec, Erho=0.12 km, Erzz=0.28 km, Gp=31 degrees
Event ID# ci41205711
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