ryukyu islands, also nansei islands, japanese island chain, gray political map

ryukyu islands nansei ryukyu nansei arc island japan map okinawa kagoshima kyushu japanese archipelago taiwan china east china sea philippine asia pacific yonaguni amami sakishima satsunan senkaku osumi island chain volcanic miyako yaeyama tokara daito tanegashima yakushima ishigaki iriomote taipei shanghai country mapping atlas cartography geography travel political gray isolated vector