Monday's 5.2 magnitude temblor marked another success for California's early earthquake warning system, with users in some ...

Telecom operators and regulators on Friday conducted a successful test of a full-scale virtual cell broadcast entity (CBE) ...

People from inland San Diego County to the Los Angeles County coast felt the earth move beneath them Monday morning when a ...

Millions of people across Southern California learned about a 5.2-magnitude earthquake that hit San Diego County on Monday ...

Many users reported receiving alerts on their phones before Monday's magnitude 5.2 temblor in Southern California.

Telecoms regulator backs mobile providers' interim 'Cell Broadcast' system as national warning infrastructure faces delays ...

A substantial earthquake struck the region that encompasses San Diego at approximately ten minutes after ten o'clock ...