Ouchi Bousai Karte TOKYO,
a Free Disaster-Preparedness Site,
Is Now Public

Ouchi Bousai Karte TOKYO turns an address into a single "chart" for your home: the earthquake and flood risks for that location, the evacuation sites nearby, and the preparations that suit the people living there.

Because the building and the projected flood depth are shown together in 3D, "how deep the water would come" becomes something you can see rather than only read as a number. The site supports multiple languages, and a finished chart can be saved as an image or printed out to keep on the fridge.

It was built as an entry for the Tokyo Governor's Cup Open Data Hackathon, hosted by the Tokyo Metropolitan Government. Rather than leave it at that, we released it publicly so anyone can use it. No account and no payment are required.

Our main work is video production, alongside our own games and apps. Translating published data into something that actually reaches the people who need it is, we think, part of the same job.

Open Ouchi Bousai Karte TOKYO ↗

This site is built on open data published by the Tokyo Metropolitan Government and others, and is intended as a reference for everyday preparedness. In an actual emergency, always follow official guidance from your local government and the Japan Meteorological Agency. The figures shown are based on projections and do not guarantee actual damage.