ONTARIO, Calif. - A preliminary 3.4-magnitude earthquake struck early Tuesday morning about 4 miles east of Ontario, according to the U.S. Geological Survey.
The USGS says the quake was reported at 3:33 a.m. with a recorded depth of about 4 miles.
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There were no immediate reports of damage or injuries. While there are many variables involved, geologists say damage does not usually occur until the earthquake magnitude reaches somewhere above 4 or 5.
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USGS provides information about earthquakes by state and preparedness information, including helpful information for those in California.
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