JNTO(Japan Safe Travel) twitter
This is a Twitter account operated by the Japan National Tourism Organization (JNTO). It provides the necessary information to foreign travelers in the event of a natural disaster.
JNTO Official Smartphone App
This is the official tourist information app for smartphones of the Japan National Tourism Organization (JNTO). It will inform you of disaster information (e.g., earthquake early warnings and emergency weather warnings) in the event of a disaster.
You can download the app from the links below.