Geographic location
Pacific
7
Morton
5
Mid-Atlantic Ridge
4
Dover
3
Galapagos
3
Norway
3
Antarctic
2
Gardiner
2
Indian
2
McArthur
2
Ramirez
2
Antarctic Peninsula
1
Bougainville
1
Bris
1
Damm
1
Elephant Island
1
Kendrick
1
Kerguelen
1
Kerguelen Islands
1
Langmuir
1
Lava Lakes
1
Levin
1
Long Island
1
Long Island Sound
1
McCall
1
Menzies
1
Morse
1
New Zealand
1
Peralta
1
Porteous
1
Ramos
1
Submarine Mountain
1
The Antarctic
1
Zajac
1