Monday’s magnitude 5.2 temblor marked another success for California’s earthquake early warning system, with users in some areas saying they received alerts on their phones before they felt shaking.

People from inland San Diego County to the Los Angeles County coast felt the earth move beneath them Monday morning when a magnitude-5.2 earthquake struck San Diego County. And, many received alerts ...

Tarang', a high-performance next-generation tsunami warning system designed to detect and relay alerts in real time, is ...

Nearly 40,000 people have signed a petition "urgently" calling for officials to create an early warning siren system for the flood-ravaged Texas hill country. The Change.org petition, created by ...