Geographic location
Baja
4
Barraza
4
Baxter
2
Bering Sea
4
Bris
1
Dorsale
1
Dover
3
Escobar
2
Fang
1
Galapagos
2
Gomez
5
Greene
2
Hicks
1
Indian
2
Krylova
1
La Dorsale
1
Lowry
2
MartÃnez
1
McIntyre
2
Meier
2
Menzel
2
Mid-Atlantic Ridge
3
Moura
3
New Zealand
3
North Pole
1
Pacific
6
Paterson
1
Rona
1
Rosario
2
Seta
4
Todd
4