The Earthquake Research Committees periodically evaluate major active faults and major subduction zone earthquakes and disclose research results to the public in a form of national seismic hazard maps. The maps are open to the public and available from the website of Japan Seismic Hazard Information Station (J-SHIS).
The map below shows the probability of experiencing JMA intensity 6- or above in the next 30 years in major s subduction zone.