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. J-Alert was launched in February 2007.^[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]