Which is the principal island of Japan?
Geography of Japan climate classification "Af") in the south such as Ishigaki in the Yaeyama Islands. Japan's varied geographical features divide it into six principal climatic zones. As an island nation, Japan has the 6th longest coastline in the world. A few prefectures are landlocked: Gunma, Tochigi, Saitama, Nagano, Yamanashi, Gifu, Shiga, and Nara. As Mt. Fuji and the coastal Japanese Alps provide a rain shadow, Nagano and Yamanashi Prefectures receive the least precipitation in Honshu, though it still exceeds annually. A similar effect is found in Hokkaido, where Okhotsk Subprefecture receives as little as per year. All other prefectures have coasts on
Smith Island (Japan) Smith Island (Japan) The island is a basalt and olivine pillar with sheer sides, the only visible portion of an active submarine volcanic caldera extending south of the island with a circumference of approximately . The above sea-level portion has a height of . The island is estimated to have been created by a volcanic eruption around 20,000 years ago. In the immediate vicinity are numerous exposed and awash rocks. Due to its shape and heavy seas it is difficult to disembark on the island, although at times fishermen are known to have landed. The abundance of fish in the