Geographic location
Arctic
19
Gakkel Ridge
14
Pacific
12
East Scotia Ridge
10
Mid-Atlantic Ridge
10
Southern Ocean
9
Antarctic
7
Bransfield Strait
7
Central Basin
7
Hook Ridge
7
Scotia Sea
7
Indian
5
Arctic Ocean
4
Three Sisters
4
Galapagos
3
Sarmiento
3
Bering Sea
2
Menzies
2
New Zealand
2
White Island
2
Astrolabe
1
Bates
1
Bay of Plenty
1
Hanssen
1
Havre
1
Heard
1
Heard Island
1
Jan Mayen
1
Kara Sea
1
Kerguelen
1
Knipovich Ridge
1
McDonald Islands
1
Moura
1
Neves
1
Saddle Point
1
Svalbard
1