The government announced a new damage estimate for the Nankai Trough Megathrust Earthquake on March 31, 2025.
NHK (Japan Broadcasting Corporation) reported that the previous estimate for Nankai Trough earthquake, released ten years ago, was updated on March 31st. The worst-case scenario now projects 298,000 deaths, slightly lower than the previous estimate of over 320,000. Efforts to improve disaster preparedness have helped reduce the number, and strengthening earthquake resistance further could save even more lives.
The expected tsunami could reach:
3 meters or more in 25 prefectures from Fukushima to Okinawa
10 meters or more in 13 prefectures from Kanto to Kyushu
Over 30 meters in some areas of Kochi and Shizuoka prefectures
Source: NHK (Japan Broadcasting Corporation)
Earthquakes can happen anywhere in Japan, not just along the Nankai Trough. Staying prepared at all times is essential. Regularly check and update your emergency supplies. See the information below for tips on daily preparedness.
Disaster Preparedness Apps
Install apps that provide alerts not only for earthquakes but also for heavy rain, typhoons, and other disasters.
Emergency kit
Prepare your emergency kit in three stages:
- Scenario 1: Items to Always Carry – Essential items for daily use, such as emergency food, a phone charger, and personal necessities.
- Scenario 2: Items for Immediate Emergency Evacuation – A backpack with survival essentials, including water, food, a flashlight, and a helmet.
- Scenario 3: Items for Comfort During Home Evacuation – Supplies for staying at home after a disaster, such as extra food, water, and daily necessities.
Prepare in advance for yourself and your family by organizing your emergency kit according to each stage. If you’re looking for a guide on emergency preparedness, check out the information below.
