Geographic location
Andreas
112
Ricardo
112
Paterson
88
Grieg
24
Pacific
22
Reykjanes
20
Mid-Atlantic Ridge
16
Norway
16
Greenland
14
Indian
14
Benavides
12
Gage
12
Rockall Trough
10
Arctic
8
Josephine
8
Tristan
8
Forbes
4
Alberti
2
Block Island
2
Charcot
2
Gough
2
Lamarck
2
Moreno
2
Norwegian Sea
2
O'Connor
2
Pawson
2
Perez
2
Perrier
2
Rockall Bank
2
Saint-Paul
2
Southern Ocean
2