For your safety
This app is created by the Japan Tourism Agency specially for foreign tourists to Japan to provide real-time earthquake and tsunami warnings in English. It also provides basic evacuation tips such as “Evacuation flow chart,” which shows what to do in case of emergency, and “Communication cards,” which introduces sentences in Japanese language that can be used to communicate with people around. Links to the websites such as embassies and tourist information centers are listed as well.
The app is available both for Android and iOS.