A 4.7 earthquake rolls through Southern California.
Students and residents across California participated in the annual earthquake drill.
Los Angeles promotes earthquake awareness in the event of a natural disaster.
Two earthquakes rocked Mexico last night in a wave of recent global earthquake activity.
The earthquake struck an area in Western Mexico, officials say no damage was caused.
Tsunami warnings were later cancelled by the Pacific Tsunami Warning Center.
An earthquake hits a city in Mexico east of Acapulco.
About 26 people were rescued overnight from the rubble.
Northern California has been shaken by two moderate earthquakes within 24 hours.
Turkish authorities fight time to save survivors from flattened buildings.