Ontario, Rancho Cucamonga, Fontana, Upland and Riverside are some of the locations that reported shaking.
NBC Universal, Inc.
Shaking was reported in communities east of Los Angeles early Tuesday afternoon due to a magnitude-3.1 earthquake in Ontario.
Photo NBC Southern California
The quake with a depth of about 3.5 miles was reported at 12:56 p.m.
Weak to light shaking was reported in Ontario, Rancho Cucamonga, Fontana, Upland, Riverside and other areas.
Photo NBC Southern California
Smaller quakes, ranging in magnitude from 1.0 to 1.8, were reported within an hour of the magnitude-3.1 earthquake. Those were centered near Ontario, Corona and Home Gardens.
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