AI Simulation Reveals Devastating Potential of Mount Fuji Eruption

Japan Releases AI-Generated Video Simulating Mount Fuji Eruption

The Japanese government has released a 10-minute AI-generated video simulating the effects of a major eruption of Mount Fuji. The video portrays a scenario similar in scale to the 1707 eruption, showing the potential damage to critical infrastructure such as power grids, sewage systems, and transportation networks.

This simulation aims to raise awareness and improve preparedness for a possible eruption. It is available on the Cabinet Office website and was launched in conjunction with Japan's "Volcanic Disaster Preparedness Awareness Day" on August 26.

Key Insights from the Simulation

• The video depicts ashfall reaching areas such as Sagamihara in Kanagawa Prefecture, about 60 kilometers from Mount Fuji. Sand-like ash particles up to 2 millimeters would fall shortly after the eruption, with a 20-centimeter-thick layer accumulating within two days.
• In Tokyo’s Shinjuku district, the simulation shows a 5-centimeter ash layer settling two days post-eruption. Ashfall of 30 centimeters or more, especially when mixed with rain, could severely damage wooden homes. Even 3 centimeters of damp ash can disrupt road transport.
• Mount Fuji, standing at 3,776 meters, is Japan’s tallest peak and straddles Yamanashi and Shizuoka Prefectures.

Expert Perspective

Toshitsugu Fujii, professor emeritus at the University of Tokyo and director of the Mount Fuji Research Institute, emphasizes the unusual nature of the volcano’s long dormancy. Although Mount Fuji last erupted over 300 years ago, historical data suggests it typically erupts every 30 years on average.

Fujii notes that an eruption could occur at any time, underscoring the importance of preparation and awareness for government agencies and the public alike.

Implications for Government Planning

This AI-generated video provides a practical tool for policymakers and disaster management professionals. It offers a clear visualization of potential impacts, aiding risk assessment and resource allocation for emergency response.

Understanding the scale and timing of ashfall can inform evacuation plans, infrastructure reinforcement, and communication strategies. The simulation serves as a reminder of the need for ongoing vigilance and disaster preparedness in regions near active volcanoes.

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