We’ve built systems to warn us of these calamities, and authorities take a very dim view of those who misuse these alarms. Fox did just that in a recent broadcast, using a designated alarm tone ...

NHK provides two types of emergency broadcasts: Emergency Warning Broadcasting (EWB) system and Earthquake Early ... This means that only people who are watching TV at the time can receive ...

This is for multiple reasons. Any such false alerts that end up on radio or TV could trigger the Emergency Alert System hardware in other broadcasters, which would cut over programming as in a ...

The Emergency Alert System — the successor to the Emergency Broadcast System introduced during the Kennedy administration — is an important conduit of emergency information, from hurricane and ...

A test of the US emergency alert ... Local tests of TV and radio alert systems have been happening for decades. While nationwide tests of the US broadcast system began in 2011, today's test ...