A new video released by Japanese officials simulates a Mount Fuji eruption, showing ash covering Tokyo and causing significant disruption. The simulation aims to prepare Tokyo's 37 million residents for a potential disaster, though officials stress there are currently no signs of an imminent eruption. Mount Fuji, a potentially active volcano last erupting in 1707, poses a significant risk due to its proximity to Tokyo and its history of powerful eruptions. While the videos are intended to educate, they've also caused anxiety among some residents. Experts emphasize the difficulty of predicting volcanic eruptions, highlighting the need for preparedness.

Prepared by Jonathan Pierce and reviewed by editorial team.