Disaster Message Board System

In case of a major disaster, such as an earthquake registering 6- or stronger on the Japanese scale, you can register messages concerning your safety on the
Disaster Message Board for your cell phone network. Registered messages can be viewed from Japanese mobile phones and from PCs anywhere in the world. You can also pre-register email addresses which will be automatically notified when you have posted a message on the Disaster Message Board.

How to use the SoftBank Disaster Message Board

How to use the DoCoMo Disaster Message Board

How to use the au Disaster Message Board