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

Elephants at San Diego Zoo Safari Park formed an alert circle to protect their young as a magnitude 5.2 earthquake hit the ...

The closer you are, the less notice you’ll get. California gets a lot of earthquakes, many of which cause little or no damage. The alerts go out for only the strongest: when a quake’s strength ...