J-Alert

J-Alert (Japanese: J－ALERT/Jアラート, romanized: J Arāto; full name 全国瞬時警報システム, Zenkoku Shunji Keihō Shisutemu, 'National Early Warning System') is the early warning system used in Japan.

[1] The system is designed to quickly inform the public of threats and emergencies such as earthquakes, severe weather, and other dangers.

The system was developed in the hope that early warnings would speed up evacuation times and help coordinate emergency response.

[2] J-Alert is a satellite based system that allows authorities to quickly broadcast alerts to local media and to citizens directly via a system of nationwide loudspeakers, television, radio, email, and cell broadcasts.

Upon its introduction, the Japanese government hoped to have 80% of the country equipped with the J-Alert system by 2009.