Crescent-shaped landmass 50km south of Minami Ioto could disappear due to erosion

The 6,000-plus islands that make up the Japanese archipelago have a new addition, after scientists said an undersea volcanic eruption 1,200km (745 miles) south of Tokyo had created a new landmass.

The island was formed in the Pacific Ocean about 50km south of Minami Ioto, the southernmost island of the Ogasawara group.