Island subgrouping Ryukyu Islands



the latest sunset in japan seen yonaguni.


the ryukyus commonly divided 2 or 3 primary groups:



either administratively, northern ryukyus being islands in kagoshima prefecture (known in japanese satsunan islands ) , southern ryukyus being islands in okinawa prefecture (known in japanese ryukyu islands ),
or geologically, islands north of tokara strait (Ōsumi , tokara) being northern ryukyus, between tokara strait , kerama gap (amami , okinawa) being central ryukyus, , south of kerama gap (miyako , yaeyama) being southern ryukyus.

following grouping , names used hydrographic , oceanographic department of japan coast guard. islands listed north south possible.



nansei islands (南西諸島, nansei-shotō)

satsunan islands (薩南諸島, satsunan-shotō)

Ōsumi islands (大隅諸島, Ōsumi-shotō) with:

tanegashima, yaku, kuchinoerabu, mageshima in north-eastern group,
takeshima, iojima, kuroshima in north-western group.


tokara islands (吐噶喇列島, tokara-rettō): kuchinoshima, nakanoshima, gajajima, suwanosejima, akusekijima, tairajima, kodakarajima, takarajima
amami islands (奄美群島, amami-guntō): amami Ōshima, kikaijima, kakeromajima, yoroshima, ukeshima, tokunoshima, okinoerabujima, yoronjima


ryukyu islands (琉球諸島, ryūkyū-shotō)

okinawa islands (沖縄諸島, okinawa-shotō): okinawa island, kume, iheya, izena, aguni, ie (iejima), iwo tori shima (iōtorishima)

kerama islands (慶良間諸島, kerama-shotō): tokashiki, zamami, aka, geruma


sakishima islands (先島諸島, sakishima-shotō, further isles )

miyako islands (宮古列島, miyako-rettō): miyakojima, ikema, Ōgami, irabu, shimoji, kurima, minna, tarama
yaeyama islands (八重山列島, yaeyama-rettō): iriomote, ishigaki, taketomi, kohama, kuroshima, aragusuku, hatoma, yubujima, hateruma, yonaguni
senkaku islands (尖閣諸島, senkaku-shotō, claimed china , taiwan): uotsurijima, kuba jima, taisho jima, kita kojima, minami kojima




daitō islands (大東諸島, daitō-shotō): kita daitō, minami daitō, oki daitō



the geospatial information authority of japan, government organization responsible standardization of place names, disagrees japan coast guard on names , extent, 2 working on standardization. agreed on february 15, 2010, use amami-guntō (奄美群島) amami islands; prior that, amami-shotō (奄美諸島) had been used.








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