Japan is an island country made up of over 6,800 islands, with the four main islands of Honshu, Kyushu, Shikoku, and Hokkaido comprising 97% of its land area. Nearly 80% of Japan consists of forested mountains and volcanoes, making large portions difficult to develop. Mount Fuji is Japan's highest peak at over 3,700 meters and is an active volcano. The country experiences over 1,500 earthquakes annually, though most are minor in scale.