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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 1:12:32 PM (PST) on Thursday, February 13, 2020.
The magnitude 0.8 event occurred 10 km (6 miles) WNW of Corona, CA.
The hypocentral depth is 14 km ( 9 miles).



Magnitude 0.8 - local magnitude (Ml)
Time Thursday, February 13, 2020 at 1:12:32 PM (PST)
Thursday, February 13, 2020 at 21:12:32 (UTC)
Distance from Corona, CA - 10 km (6 miles) WNW (288 degrees)
Norco, CA - 12 km (7 miles) WSW (251 degrees)
Yorba Linda, CA - 13 km (8 miles) E (86 degrees)
Chino, CA - 13 km (8 miles) S (172 degrees)
Chino Hills, CA - 14 km (8 miles) SE (142 degrees)
Coordinates 33 deg. 53.9 min. N (33.898N), 117 deg. 40.1 min. W (117.668W)
Depth 13.76 km (8.6 miles)
Quality Good
Location Quality Parameters Nst=19, Nph=29, Dmin=5.6 km, Rmss=0.12 sec, Erho=0.31 km, Erzz=0.44 km, Gp=116 degrees
Event ID# ci39070719
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