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4.4-magnitude earthquake, 2.7 aftershock rattle Southern California

This image captured from the U.S. Geological Survey's website shows a 4.4-magnitude earthquake, pinned by the larger red box, and subsequent, smaller aftershocks within the red box. The earthquake struck 2 miles outside of Yorba Linda at 11:23 p.m. on Tuesday, Aug. 7, 2012. (www.usgs.gov)

August 7, 2012 12:00:00 AM PDT
A 4.4-manitude earthquake, followed by a 2.7-magnitude aftershock less than a minute later, struck about 2 miles out of Yorba Linda late Tuesday night.

According to the U.S. Geological Survey, the initial temblor struck at 11:23 p.m. at a depth of 5.1 miles. Smaller aftershocks trailed, including some magnitudes 1.4 and 1.2.

The quick jolts were felt through the region, but there were no immediate reports of injuries or major damage.

All Los Angeles Fire Department resources went into emergency earthquake mode, which included checking school buildings, power lines and bridges to ensure public safety.