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== PRELIMINARY EVENT 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 quarry occurred at 12:15:18 PM (PST) on Friday, February 14, 2020.
The magnitude 1.6 event (a probable quarry explosion) occurred 3 km (2 miles) SE of Home Gardens, CA.
The hypocentral depth is -0.48 km (-0.3 miles).



Magnitude 1.6 - local magnitude (Ml)
Time Friday, February 14, 2020 at 12:15:18 PM (PST)
Friday, February 14, 2020 at 20:15:18 (UTC)
Distance from Home Gardens, CA - 3 km (2 miles) SE (129 degrees)
Corona, CA - 7 km (4 miles) E (98 degrees)
Norco, CA - 9 km (6 miles) SSE (148 degrees)
Pedley, CA - 13 km (8 miles) S (188 degrees)
Riverside, CA - 13 km (8 miles) SW (224 degrees)
Coordinates 33 deg. 51.7 min. N (33.861N), 117 deg. 29.7 min. W (117.496W)
Depth -0.48 km (-0.3 miles)
Quality Fair
Location Quality Parameters Nst=46, Nph=46, Dmin=6.3 km, Rmss=0.22 sec, Erho=0.34 km, Erzz=31.61 km, Gp=49 degrees
Event ID# ci39071807
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