出典:Wikipedia
出典:『Wikipedia』 (2011/06/25 16:35 UTC 版)
J-Alert (全国瞬時警報システム Zenkoku Shunji Keihō System) is a nationwide warning system in Japan launched in February 2007. It is designed to quickly inform the public of various threats. The system was developed in the hope that early warnings would speed up evacuation times and help coordinate emergency response.
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a trot
the signal-bell
のろし.
the signal-flag