Japan Warns of Potential Nankai Trough Megaquake with Devastating Impact

New government report projects up to 298,000 deaths and $1.81 trillion in damages, urging heightened disaster preparedness.

Japan's Cabinet Office released updated projections estimating up to 298,000 deaths and $1.81 trillion in economic damage from a potential magnitude 9 earthquake in the Nankai Trough.
The probability of such a megaquake occurring within the next 30 years has been raised to 75-82%, reflecting increased seismic risk in the region.
Updated death toll projections include 215,000 fatalities from tsunamis, 73,000 from building collapses, and 9,000 from fires, with coastal areas like Shizuoka, Kochi, and Wakayama most vulnerable.
The revised economic damage estimate accounts for inflation and expanded flood zone data, highlighting the broader potential impact area.
Officials emphasize the need for enhanced preparedness despite Japan's investments in early warning systems and infrastructure upgrades.