Latitudes and Longitudes
| Seaport Name | Seaport Code | Country | Latitude | Longitude |
|---|---|---|---|---|
| Kobe | JPUKB | Japan | 34°40'N | 135°11'E |
| Iyomishima | JPIYM | Japan | 34°16'N | 133°00'E |
| Yokoshima | JPYKS | Japan | 35°40'N | 139°18'E |
| Kawasaki | JPKWS | Japan | 35°32'N | 139°45'E |
| Iwakuni | JPIWK | Japan | 34°10'N | 132°13'E |
| Yokohama | JPYOK | Japan | 35°27'N | 139°37'E |
| Hiroshima | JPAKT | Japan | 34°20'N | 132°24'E |
| Yokkaichi | JPYKK | Japan | 34°57'N | 136°37'E |
| Himeji | JPHIM | Japan | 34°47'N | 134°40'E |
| Yamada | JPYAD | Japan | 33°16'N | 133°40'E |
| Hiki | JPHIK | Japan | 34°13'N | 135°07'E |
| Suzaki | JPSUZ | Japan | 33°23'N | 133°17'E |
| Wakayama | JPHIK | Japan | 34°13'N | 135°07'E |
| Hamada | JPHMD | Japan | 34°54'N | 132°02'E |
| Sakaide | JPSKD | Japan | 34°19'N | 133°50'E |
| Uraga | JPKRH | Japan | 35°13'N | 139°42'E |
| Goi | JPGOI | Japan | 35°30'N | 140°05'E |
| Matsuyama | JPMYJ | Japan | 33°52'N | 132°41'E |
| Ube | JPUBJ | Japan | 33°56'N | 131°14'E |
| Fushiki | JPFSK | Japan | 36°46'N | 137°13'E |