Geography of Japan
Japan is an island nation comprising a stratovolcanic archipelago over along East Asia's Pacific coast. It consists of 6,852 islands. The main islands are Honshu, Kyushu, Shikoku and Hokkaido. The Ryukyu Islands and Nanpō Islands are south of the main islands. The territory extends . It is the largest island country in East Asia and fourth largest island country in the world. Japan has the sixth longest coastline and the eight largest Exclusive Economic Zone of in the world.
Okinotorishima
Japan claims an EEZ over 400,000 square km (154,500 square miles) around Okinotorishima. China and South Korea dispute this claim in their addenda to the CLCS, saying the area only consists of rocks and not islands. Neither China nor South Korea have territorial claims regarding Okinotorishima, but foreign policy analysts speculated that it wants to "investigate the surrounding seabed for submarine operations in case of military conflict involving the Republic of China (Taiwan)." Japan claims that rock is not defined in the Convention. Besides, the construction of port, lighthouse and power station may be used as a counterargument for PRC's claim regarding "sustain human habitation or economic life".