Geographic location
Antarctic
17
The Antarctic
7
Arctic
4
Australian-Antarctic Discordance
4
Grim
4
Indian
4
Malville
4
Rodriguez
4
Southern Ocean
4
Erta
3
Fukushima
3
Lava Lake
3
East Antarctica
2
Talos Dome
2
Wilkes Subglacial Basin
2
Antarctic Ocean
1
Austral
1
Austral Ocean
1
Canada
1
Dorsale
1
Le Plateau
1
Patagonia
1
Reykjanes
1