A preliminary 3.4-magnitude earthquake rattled Fontana Saturday night, according to the United States Geological Survey.
The temblor was reported at 8:17 p.m. about 6 km northwest of Fontana. It struck at a depth of 3.5 km.
It is the second earthquake to happen Saturday after a preliminary 3.5-magnitude earthquake was reported at 2:17 p.m., six hours earlier…