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== 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 10:03:08 PM (PDT) on Tuesday, August 13, 2019.
The magnitude 1.1 event occurred 12 km (7 miles) N (2 degrees) of Monrovia, CA.
The hypocentral depth is 12 km ( 8 miles).



Magnitude 1.1 - local magnitude (Ml)
Time Tuesday, August 13, 2019 at 10:03:08 PM (PDT)
Wednesday, August 14, 2019 at 5:03:08 (UTC)
Distance from Monrovia, CA - 12 km (7 miles) N (2 degrees)
Sierra Madre, CA - 12 km (7 miles) NNE (27 degrees)
Bradbury, CA - 12 km (8 miles) N (350 degrees)
Duarte, CA - 13 km (8 miles) N (353 degrees)
Arcadia, CA - 13 km (8 miles) NNE (16 degrees)
Coordinates 34 deg. 15.3 min. N (34.255N), 117 deg. 59.7 min. W (117.995W)
Depth 12.5 km (7.8 miles)
Quality Excellent
Location Quality Parameters Nst=31, Nph=53, Dmin=6.8 km, Rmss=0.13 sec, Erho=0.18 km, Erzz=0.37 km, Gp=57 degrees
Event ID# ci38966080
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