About
| Site | Japan Hazard & Insurance Check |
|---|---|
| Operator | Jitty |
| What it does | Free tool showing hazard overviews, insurance review points and earthquake insurance estimates from Japanese government open data |
| Contact | (coming soon) |
This site does not sell or broker insurance and is not produced by the government or insurers. It cannot be used for statutory explanations in real estate transactions (Hazard Map Portal terms).
Data used
- Hazard Map Portal open data (map tiles)
- GSI tiles (pale map)
- MOF earthquake insurance base premiums / GIROJ earthquake base rates
- National Land Numerical Information land price points (2026, CC BY 4.0): used for municipal map positions
- MIC local government codes (municipality names)
- Leaflet 1.9.4 (map display, BSD 2-Clause, bundled)