Honshu the economy along the northwestern Sea of Japan coast is largely based on fishing and agriculture. The island is linked to the other three major Japanese islands by a number of bridges and tunnels. Its climate is humid and mild. The island is roughly long and ranges from wide, and its total area is , 60% of the total area of Japan, making it slightly larger than Great Britain. Its land area has been increasing with land reclamation and coastal uplift in the north, but global sea level rise has diminished these effects. Honshu has of coastline. Mountainous and volcanic,
Sangir Island Other major eruptions occurred in 1966 and 2004. Sangir Island Sangir Besar, commonly called Sangir Island (with the spelling variants "Sangihe", "Sanghir" or "Sangi"), is an island in the Sangir Islands group. Its Indonesian name literally means "Great Sangir", in reference to the fact that it is the archipelago's main island. It is part of the North Sulawesi province. The main language is the Sangir language. It was the scene of the violent eruption of Gunung Awu volcano in 2 March, 1856. The existing mountain was reshaped by the eruption, and flooding was extensive. The death toll was estimated to