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 6:15:42 PM (PDT) on Saturday, September 11, 2021.
The magnitude 1.1 event occurred 16 km (10 miles) SW of Ludlow, CA.
The hypocentral depth is 5 km ( 3 miles).


Magnitude 1.1 - local magnitude (Ml)
Time Saturday, September 11, 2021 at 6:15:42 PM (PDT)
Sunday, September 12, 2021 at 1:15:42 (UTC)
Distance from Ludlow, CA - 16 km (10 miles) SW (223 degrees)
Amboy, CA - 49 km (31 miles) W (278 degrees)
Joshua Tree, CA - 54 km (33 miles) N (3 degrees)
Twentynine Palms, CA - 56 km (35 miles) NNW (340 degrees)
Yucca Valley, CA - 57 km (36 miles) NNE (14 degrees)
Coordinates 34 deg. 36.9 min. N (34.616N), 116 deg. 16.8 min. W (116.279W)
Depth 5.28 km (3.3 miles)
Quality Fair
Location Quality Parameters Nst=22, Nph=41, Dmin=13.9 km, Rmss=0.15 sec, Erho=0.2 km, Erzz=1.13 km, Gp=69 degrees
Event ID# ci39806127
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