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

JACKSON COUNTY, MI — Two sirens in Jackson County’s emergency alert system reportedly failed to sound while the county was under both a tornado and severe thunderstorm warning Sunday, March 30. Now, ...

What does it mean when you hear the outdoor warning sirens? How long will they sound? And no, there's no such thing as an "all-clear" siren.