Honshu and Shikoku, Japan’s Largest and Smallest Main Islands35.1N 136.9E
The Japanese islands of Honshū, the country’s largest isle, and Shikoku, across the Seto Inland Sea, are visible here despite some cloud cover.
Honshū is roughly 1,300 km long and ranges from 50 to 230 km wide, with a total area of 227,962.59 km² (60% of the total area of Japan). Its area has been expanding with land reclamation and coastal uplift in the north, but global sea level rise has diminished these effects.
Honshū has 5,450 km of coastline. Here, cities such as Osaka, Nagoya and Tokyo can be seen hugging the shores of bays indented into the island’s southern coast. Inland, a mountain range runs along the length of Honshū from end to end.
Shikoku, on the contrary, is the smallest and least populous of the four main islands of Japan. It has a length of 225 km and a width ranging from 50 to 150 km across.