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

A micro earthquake occurred at 3:10:54 AM (PDT) on Tuesday, July 28, 2020.
The magnitude 1.0 event occurred 5 km (3 miles) SW of Palomar Observatory, CA.
The hypocentral depth is 19 km (12 miles).



Magnitude 1.0 - local magnitude (Ml)
Time Tuesday, July 28, 2020 at 3:10:54 AM (PDT)
Tuesday, July 28, 2020 at 10:10:54 (UTC)
Distance from Palomar Observatory, CA - 5 km (3 miles) SW (217 degrees)
Aguanga, CA - 14 km (9 miles) SSW (192 degrees)
Lake Henshaw, CA - 15 km (9 miles) NW (305 degrees)
Valley Center, CA - 17 km (11 miles) NE (49 degrees)
Pala, CA - 18 km (11 miles) ESE (107 degrees)
Coordinates 33 deg. 19.2 min. N (33.320N), 116 deg. 53.8 min. W (116.896W)
Depth 18.83 km (11.7 miles)
Quality Good
Location Quality Parameters Nst=30, Nph=47, Dmin=4.9 km, Rmss=0.16 sec, Erho=0.23 km, Erzz=0.59 km, Gp=42 degrees
Event ID# ci38612602
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