is the tallest volcano in Japan.
The mountain as it appears now is the "New Fuji volcano", which began to erupt about 10,000 years ago. Under the "New Fuji volcano" lie the "Komitake volcano", which became active 700,000 years ago, and the "Old Fuji volcano", which was active between 100,000 years ago and 10,000 years ago.
There has been much volcanic activity in the vicinity of Mount Fuji for several million years. 700,000 years ago, in the location occupied by the current Mount Fuji, a volcano known as , literally meaning "small mountain volcano", became active. Around this time, another volcano, , in the area to the south-east of Mount Fuji, was also highly active.The peak of the ancient volcano, Komitake, can be seen from the north face of Mount Fuji at the fifth station, about 2300 meters above sea-level.
Around 100,000 years after becoming inactive, Komitake entered another period of activity. The volcano in this period is known as . Older Fuji was known as to have explosive eruptions, throwing out large quantities of scoria
, volcanic ash
, forming a large mountain which reached a height of 3,100m.<!--kkkkkkkkkkkkkk
The ice age and mud flows...