noun
disaster message board; emergency message board
An online service provided by Japanese telecom carriers that allows people to register and check safety status during major disasters. Often accessed via a special number or web interface.
See also: 災害用伝言ダイヤル
地震の後、災害用伝言板に安否情報を登録した。
After the earthquake, I registered my safety status on the disaster message board.
災害用伝言板は、大規模災害時に携帯電話会社が提供するサービスです。
The disaster message board is a service provided by mobile phone carriers during large-scale disasters.
A voice-based emergency message service (dial 171), whereas 災害用伝言板 is a text-based online board.
Compound of 災害 (disaster) + 用 (for) + 伝言 (message) + 板 (board). A modern term for a specific disaster-preparedness service.