Luoghi in Caratteristiche Undersea che comincia con la lettera "ha"
Haaheo Seamount (montagna marina),
Haast Canyon (canyon),
Haast Sea Valley (canyon),
Haast Valley (canyon)Habibas Escarpment (scarpata),
Habuto Canyon (canyon)Haceta Depression (valle)Hadrian Seamount (montagna marina)Hagi Seamount (montagna marina)Hahajima Seamount (montagna marina),
Hahazima Seamount (montagna marina)Hai-chiu An-sha (scogliera),
Hai-k’ou An-sha (secca),
Hai-Ma T’an (scogliera),
Hai-ning Chiao (scogliera),
Haida Channel (canale marino),
Haijiu Ansha (scogliera),
Haikang Ansha (scogliera),
Haikou Ansha (secca),
Haikou Jiao (secca),
Haima Tan (scogliera),
Haining Jiao (scogliera)Hakateka Ridge (montagne marine),
Hakateka Seamount Chain (montagne marine),
Hakobe Seamount (montagna marina),
Hakuhō Seamount (montagna marina),
Hakuju Seamount (montagna marina),
Hakurei Seamount (montagna marina),
Hakuzyu Seamount (montagna marina)Halawa Canyon (canyon),
Halbouty Mound (cumulo),
Haldimand Canyon (canyon),
Half Moon Shoal (scogliera),
Halibut Bank (riva),
Halibut Bank (riva),
Halk el Menzel Bank (riva),
Hall Bank (altopiano),
Hall Knoll (montagna marina),
Hall Seamount (montagna marina),
Hall Seamount (altopiano),
Hall Tablemount (altopiano),
Hallett Ridge (cresta),
Halmahera Basin (bacino),
Halmahera Bekken (bacino),
Halten Bank (riva),
Haltenbanken (riva)Hamilton Bank (riva),
Hamilton Guyot (altopiano),
Hamilton Tablemount (altopiano),
Hammerstein Seamount (montagna marina),
Hammondsport Bank (montagna marina),
Hammondsport Seamount (montagna marina)Hana Mound (cumulo),
Hancock Bank (riva),
Hancock Bank (scogliera),
Hancock Basin (bacino),
Hancock Seamount (montagna marina),
Hand Shoal (scogliera),
Handel Seamount (montagna marina),
Hanna Bank (riva),
Hanna Canyon (canyon),
Hanna Mound (cumulo),
Hanna Shoal (secca),
Hannibal Bank (riva),
Hanzawa Seamount (altopiano)Hardie Reef (scogliera),
Hardy Bank (riva),
Hardy Patches (scogliera),
Hardy Reef (scogliera),
Harrie Guyot (altopiano),
Harrington Hill (collina),
Harris Ridge (cresta),
Harris Seamount (montagna marina),
Harris Seamount (montagna marina),
Harris Stewart Seamount (montagna marina),
Harrison Bank (riva),
Harrison Basin (bacino),
Harrison Mound (cumulo),
Harrison Seamount (montagna marina),
Hart Reef (scogliera),
Hartog Ridge (cresta),
Harunonanakusa Seamounts (montagne marine),
Harvey Guyot (altopiano)Hasa-hasa Shoal (scogliera),
Haslam Seamount (montagna marina),
Haslam Seamount (historical) (montagna marina),
Hassayampa Seamount (montagna marina),
Hassler Reef (scogliera)Hatherton Seamounts (montagne marine),
Hatteras Abyssal Plain (pianura),
Hatteras Canyon (canyon),
Hatteras Outer Ridge (cresta),
Hatteras Plain (pianura),
Hatteras Ridge (cresta),
Hatton Bank (cresta),
Hatton Ridge (cresta),
Hatton-Rockall Basin (bacino)Hauraki Canyon (canyon),
Haut Fond de la Chapelle (riva),
Hauteur Arlis (sperone),
Hauteur Sargo (altopiano)Havergal Deep (bacino),
Havergall Deep (bacino),
Havre Trough (bacino),
Havre Trough (canale)Hawaii-Rücken (cresta),
Hawaiian Arch (arco),
Hawaiian Deep (canale),
Hawaiian Plateau (cresta),
Hawaiian Ridge (cresta),
Hawaiian Trough (canale),
Hawkbill Seamount (montagna marina),
Hawke Canyon (canyon),
Hawke Sea-Valley (canyon),
Hawkins Reef (scogliera),
Hawkins Shoal (scogliera),
Hawley Ridge (cresta)Hayama Canyon (canyon),
Haycock Basin (bacino),
Haycock Depression (bacino),
Haydn Seamount (montagna marina),
Hayes Fracture Zone (zona di frattura),
Hayes Peak (altopiano),
Hayes Reef (scogliera)Hazel Holme Bank (montagna marina)
Coordinate Geografiche