Honshū

is the biggest island of Japan. 
Honshū is also Japan's main island. It is south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Seto Inland Sea, and northeast of Kyūshū across the Kanmon Strait. It is the seventh biggest island, and is the island with the second highest number of people in the world after Java. 
History.
In March 2011, the east coast of Honshu was struck by a huge earthquake and a following tsunami.