quality:correction, information:extraction
Current eruptive danger

Following the 2011 Tōhoku earthquake, there was speculation in the media that the shock may induce volcanic unrest at Mount Fuji. In September 2012, mathematical models created by the National Research Institute for Earth Science and Disaster Prevention (NRIESDP) suggested that the pressure in Mount Fuji's magma chamber could be 1.6 megapascals higher than it was before its last eruption in 1707. This was interpreted by some media outlets to mean that an eruption of Mount Fuji could be imminent. However, since there is no known method of directly measuring the pressure of a volcano's magma chamber, indirect calculations of the type used by NRIESDP are speculative and unverifiable. Other indicators suggestive of heightened eruptive danger, such as active fumaroles and recently discovered faults, are typical occurrences at this type of volcano.

Eruption fears continued into the 2020s. In 2021, a new hazard map was created to help residents plan for evacuation, stoking fears because of its increased estimate of lava flow and additional vents. Soon afterwards, a 4.8 magnitude earthquake hit the area, sending the phrase "Mt Fuji eruption" trending on Twitter. However, the Japan Meteorological Agency assured the public the earthquake did not increase the eruption risk. In 2023, a new evacuation plan was developed to account for the 2021 hazard map update.