World Japan’s island number could more than double after a recount found 7,000 unknown islands March 3, 2023March 3, 2023Camille Fine, USA TODAYComments Off on Japan’s island number could more than double after a recount found 7,000 unknown islands Geographers say the number of islands in Japan is expected to more than double, topping 14,000, after a recount led to the discovery of 7,000 islands.