The AI-video, released on Sunday by the Tokyo Metropolitan Government's Disaster Prevention Division, shows a woman in a bustling street suddenly receiving a warning on her phone informing her the volcano has erupted. "The moment may arrive without any warning," says the narration, before the video cuts to dramatic visuals of large clouds of smoke emitting from Fuji. The video warns that volcanic ash could reach Tokyo within two hours, causing health hazards as well as disruptions on to power supplies, traffic and food distribution.