A 5.4 earthquake shook Southern California at 11:42 this morning.

The epicenter was 10 miles south of Chino Hills, and the quake was felt as far away as San Diego.

There were 27 aftershocks in the hour following the quake.

Immediately after the quake, system overload caused cell phones to go dead, but service was soon restored.. Disneyland closed its rides, and Metroline trains stopped running for a short time.

There were reports of minor damage and injuries , but nothing major.