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Magnitude-3.4 Quake Rattles Ontario, Rancho Cucamonga
The epicenter was near Jurupa Street and Commerce Parkway in Ontario.
LOS ANGELES (CBSLA) – A magnitude 3.4 earthquake shook Ontario and Rancho Cucamonga early Tuesday morning.
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The earthquake struck at 3:33 a.m. about three miles east of the Ontario city center, five miles south of Rancho Cucamonga and 6.8 miles southeast of Fontana, according to the U.S. Geological Survey.
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