Honshu (本州) is the largest island of Japan. The nation’s main island, it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait. The island is roughly 1,300 kilometres long and ranges from 50 to 230 km wide, and its total area is 227,962.59 km2, 60% of the total area of Japan, larger than Great Britain. Honshu has frequent earthquakes (the Great Kantō earthquake heavily damaged Tokyo in September 1923, and the earthquake of March 2011 moved the whole island by 2.4 m while causing devastating tsunamis); the highest peak is the active volcano Mount Fuji at 3,776 m. There are many rivers, including the Shinano River, Japan’s longest. The climate is temperate, but has marked difference between the eastern or southern (Pacific or Inland Sea coast) side, and the western or northern (Sea of Japan coast) side. A mountain range runs along the length of Honshu from end to end. In addition to Mt. Fuji, the Japanese Alps are a feature of Honshu [ref]