The topographical features of Japan are: high in the middle and mountainous; The surroundings are low and flat. About 6 1% of Japan's land is mountainous with an altitude of more than 300 meters. 18% is a hill below 300 meters above sea level, accounting for nearly 80% of the country. There are 2 1 mountain above 3000 meters above sea level. The highest one is Mount Fuji in Yamanashi Prefecture and Shizuoka Prefecture, with an altitude of 3,776 meters. The lowest places are the new plains of Yokohama, Kawasaki and Kanagawa.
Because Japan is located at the extinction boundary of the Asia-Europe plate and the Pacific plate, that is, the circum-Pacific volcanic seismic belt, which is a part of the combination of island arcs, coastal mountains and trenches in the western Pacific, volcanic and seismic activities are frequent. 68% of the country is mountainous, and one tenth of the world's volcanoes are located in Japan.