The Japanese Cabinet Office and the Tokyo Metropolitan Government have jointly released an AI-generated computer graphic video simulating the potential effects of a large-scale eruption of Mount Fuji. The simulation illustrates extensive volcanic ash fallout, with ash deposits reaching up to 10 centimeters in Tokyo's Shinjuku district, located approximately 100 kilometers from Mount Fuji. The video depicts the city enveloped in ash, resulting in severely reduced visibility and disruption of infrastructure, including roads and railways. The simulation also highlights the risk of house collapses and widespread interruption of essential services and supply chains, emphasizing the difficulty in obtaining daily necessities. The authorities aim to raise public awareness about the possibility of such an eruption and the importance of preparedness, including stockpiling emergency supplies sufficient for at least two weeks and prioritizing sheltering at home. The release of the video coincides with Japan's Volcano Disaster Prevention Day, underscoring the urgency of disaster readiness for the 37 million residents in the greater Tokyo metropolitan area. The government stresses that while large volcanic eruptions are infrequent compared to other natural disasters, the potential impact on daily life and infrastructure could be severe and immediate.