MUSCOY, Calif. -- A preliminary 4.3-magnitude earthquake struck Southern California Thursday morning, according to the U.S. Geological Survey.

That quake hit just after 9:30 a.m. in the Muscoy area at a depth of just over three miles. A few minutes later, a smaller 3.1-magnitude temblor shook the Rialto area nearby.

About an hour before that, the Rialto are saw two smaller quakes - magnitude 3.0 and 2.8.

People reported feeling shaking in many areas including Jurupa Valley, Eastvale, Ontario and even as far as Redondo Beach. Most callers described it as a jolt or sudden movement.

"I felt it in Garden Grove, in my apartment on the 7th floor," Gregory Christison said on Facebook. "It was a rolling sensation."

Cindy Hecht Sedbrook said she was on the 11th floor of a building in Irvine

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