Archive · 2 Jul 2025
Japan Updates Earthquake Plan as Megaquake Risk Rises
Japan is getting ready for a huge earthquake in the Nankai Trough, a place where earthquakes happen a lot.
Experts say there's a high chance of a very big earthquake in the next few decades.
This earthquake could cause a lot of damage and sadly, many deaths.
To prepare, the government is updating its plans, which includes building stronger defenses, improving escape routes, and practicing what to do in an earthquake.
The goal is to make sure as many people as possible stay safe.
Japan updated its earthquake preparedness plan due to increased risk in the Nankai Trough.
An 82% chance of a magnitude 7+ earthquake is predicted in the Nankai Trough within 30 years.
Such an earthquake and tsunami could cause 298,000 deaths and $2 trillion in damage.
The updated plan includes embankment construction, infrastructure improvements, and more drills.
The goal is to reduce deaths by 80% and destroyed homes by 50%.
- Who
- The Japanese government and its citizens.
- What
- Japan revised its earthquake preparedness plan due to increased risk of a major quake in the Nankai Trough.
- When
- The next 30 years.
- Where
- Japan, specifically the Nankai Trough.
- Why
- To reduce casualties and damage from a potential megaquake.
Government
N/A
Disaster Preparedness
Government
Increased efforts to build embankments, improve evacuation infrastructure, and conduct more regular disaster drills.
N/A
N/A
- Earthquake Risk
- 82% chance of 7+ magnitude in 30 years
- Potential Deaths
- Up to 298,000
- Potential Damage
- Up to $2 trillion
- Revised Plan Goal
- Reduce deaths by 80%
- Last Megaquake
- 1946
