A shake alert went out over the U.S. Geological Survey's early warning system on Dec. 4, warning that a 5.9 earthquake near Carson City in western Nevada could produce heavy shaking in the region. But ...

A false alert is anytime the Coast Guard’s search and rescue systems are activated when there is no real emergency.

The governor and California lawmakers are pointing fingers at the federal government after a false alert went out to millions of Californians for an earthquake that never happened earlier this month.

A false alert about an active shooter at the office- and tourist-heavy Hudson Yards caused a brief but “heart pumping” panic Wednesday afternoon before it was confirmed to be a mistake. The alert was ...

The errant earthquake warning that lit up phones across Northern California with a notice of a quake in Nevada on Thursday morning was not a result of a problem with the early warning delivery system ...

The wildfires in the Greater Los Angeles area are creating emergency situations that are shaping up to be a once-in-a-generation event. And in the midst of multiple active fires with evacuation orders ...