20+ Myths About Mount Fuji Gif. It has been a violent, active volcano for much of its history. In 864, mount fuji violently erupted for 10 days claiming a great number of lives and starting fires as far away as edo (tokyo).
Mount fuji first erupted out of the ground about 600,000 years ago.
In the stillness, visitors say every breath sounds like a roar. Mount fuji is a composite volcano, growing larger as layer upon layer of lava and ash built up on its slopes. Her action made her the highest mountain in japan, forever. Beneath fallen branches and decaying leaves, the forest floor is made of volcanic rock, cooled lava from mount fuji's massive 864 eruption.