Virus video created with artificial intelligence (AI) shows the devastating impact of a volcanic eruption on Mount Fuji on Tokyo, Japan and its 37 million residents. Fortunately, informational videos do not timing the increased risk of eruptions. This is merely an announcement of public services related to Japan’s Volcanic Disaster Prevention Day in 2025.
An AI-generated video released on August 22 by the Tokyo Metropolitan Government warns the speed at which volcanic ash can travel from the volcano to the Japanese capital, then descends on roads, buildings, railways and other infrastructure. A cloud of debris from Mt. Fuji can reach Tokyo in just 1-2 hours, with subtitles drawn under subtitles under the video, paralyzing the city’s transport network, reducing power sources, and affecting the respiratory health of millions of people.
“The moment may arrive without warning,” said the subtitles, who translated the video’s narration from Japan into English. “If Mount Fuji erupts, volcanic ash can fall into Tokyo and affect us in many ways.”

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In the video, a woman receives a warning on her mobile phone to erupt on Mount Fuji, located 60 miles (100 km) southwest of Tokyo’s city centre. The clip then takes viewers on an AI-generated tour of Tokyo’s transport links, power lines, water supply, residential buildings and the potential impact of volcanic ash on residents.
“To minimize ash build-up on runways and rails, we simply prevent planes and trains from being used,” says subtitles in the video section on transportation infrastructure. “A small amount of ash on the road can affect the operation of the 2WD [two-wheel drive] As ash falls, the vehicle limits its visibility, increases the risk of slipping, and creates dangerous driving conditions. ”
According to the video, large quantities of ash can cut off Tokyo’s sewerage, contaminate freshwater supplies, crush power lines, and collapse wooden roofs. Additionally, if ash particles block the sun, the city can plunge into darkness, and access to food and other essentials can be temporarily suspended. Furthermore, people can suffer negative health effects from inhaling particles, causing worse breathing conditions that worsen with exposure.
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Mount Fuji is Japan’s highest peak, 12,389 feet (3,776 meters) tall. According to the video, the last volcano erupted in 1707, but its subsequent fall of ash lasted for two weeks. Mount Fuji used to erupt about every 30 years, but now it has been dormant for 318 years, but some experts believe it can blow at any time.
However, the timing of the video is unrelated to the signs of an eruption, and there are no proposals that Mount Fuji is near an explosion, the Tokyo Metropolitan Government said in a statement seen by CNN. “The simulation is designed to equip residents with the precise knowledge and preparatory measures that can be taken in the event of an emergency,” the official wrote in a statement.
Preparation measures include supplying food and first aid. In the video, parents show their children a pantry filled with canned food, water and medicines ready in emergencies.
According to CNN, the video was released for Volcanic Disaster Preparedness Day 2025, but this is not the first time the Tokyo government has warned about the risks of Mt. Fuji. In March, authorities issued guidelines that encourage people to always stock two weeks’ worth of essential supplies in their homes.
Although the Japanese government has modelled earthquake and volcanic eruption scenarios for years, these studies do not coincide with specific risks from Mt. Fuji and other geological features.
“The timing doesn’t really make any sense,” Sekiya confirmed.
In Japan, 111 active volcanoes are located about one tenth of the world’s total due to the location of the fires in the Pacific Ring, a horseshoe-shaped belt of volcanoes around the Pacific Ocean. The country is at the boundary of four tectonic plates that crush each other, often collide, causing a swarm of earthquakes and volcanic eruptions.
Perhaps the best-known natural disasters attacking Japan were the 2011 Tohoku earthquake and tsunami. The magnitude 9 earthquake was the strongest in Japan’s recorded history.
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