GEISEIR site 26, segment M4 |
active, inferred |
mid-ocean ridge |
SEIR |
-43.6901 |
92.8451 |
2500 |
2009 plume only |
EPR, 21 20'S |
active, inferred |
mid-ocean ridge |
S EPR |
-21.3670 |
-114.2570 |
2900 |
1981 plume only; 1987-1988 deposits only |
GEISEIR site 15, segment L1 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.2230 |
86.3892 |
2500 |
2010 plume only |
Don Joao de Castro Bank |
active, confirmed |
mid-ocean ridge |
Terceira Rift |
38.2300 |
-26.6300 |
45 |
1995 SCUBA |
EPR, 3.9 N offset |
active, confirmed |
mid-ocean ridge |
N EPR |
3.9170 |
-102.2330 |
2875 |
1989 or earlier Deep Tow photographs (cruise RIFTS or PAPATUA) |
Luso |
active, confirmed |
mid-ocean ridge |
N MAR |
38.9833 |
-29.8833 |
570 |
2018 ROV Luso |
Baby Bare Seamount |
active, confirmed |
mid-ocean ridge |
JdF Ridge |
47.7100 |
-127.7870 |
2600 |
1995 submersible Alvin |
Lilliput |
active, confirmed |
mid-ocean ridge |
S MAR |
-9.5500 |
-13.1800 |
1500 |
2005 ROV Quest |
Zouyu ridge |
active, confirmed |
mid-ocean ridge |
S MAR |
-13.2800 |
-14.4100 |
2315 |
2009 towed video |
Green Seamount |
inactive |
mid-ocean ridge |
N EPR |
20.8033 |
-109.2833 |
2000 |
1982 submersible Alvin observed only inactive |
EPR, 9 50'N |
active, confirmed |
mid-ocean ridge |
N EPR |
9.8300 |
-104.2900 |
2520 |
1989 Argo I towed video |
SWIR, Plume 6 |
active, inferred |
mid-ocean ridge |
SWIR |
-27.7670 |
65.1330 |
3200 |
1997 plume only |
GEISEIR site 37, segment O4 |
active, inferred |
mid-ocean ridge |
SEIR |
-47.7483 |
98.1756 |
2800 |
2009 plume only |
MAR, 27 S |
active, inferred |
mid-ocean ridge |
S MAR |
-27.1476 |
-13.4753 |
3341 |
2013 plume only |
Lucky Strike |
active, confirmed |
mid-ocean ridge |
N MAR |
37.2933 |
-32.2733 |
1740 |
1993 submersible Alvin; 1992 dredge and plume only |
SESCA |
active, inferred |
mid-ocean ridge |
Gorda Ridge |
40.7500 |
-127.5200 |
3300 |
1986 sediments and heat-flow measurements |
EPR, 10 44.6'N |
active, confirmed |
mid-ocean ridge |
N EPR |
10.7433 |
-103.6500 |
2580 |
1985 Argo video tow with temperature |
Romanche Fracture Zone |
inactive |
mid-ocean ridge |
S MAR |
-0.9767 |
-24.5133 |
3100 |
NotProvided |
MAR, 23 35'N |
inactive |
mid-ocean ridge |
N MAR |
23.5833 |
-45.0000 |
3500 |
1980 submersible Alvin did not observe hydrothermal activity |
Aegir |
active, confirmed |
mid-ocean ridge |
Mohns Ridge |
72.3440 |
1.5550 |
2600 |
2015 ROV Ægir 6000; 2013 plume only; 2015 AUV |
Ischia Island, Gulf of Naples |
active, confirmed |
other |
Coastal Italy |
40.7306 |
13.9500 |
10 |
1954 or earlier, from the beach |
White Point, Palos Verde, California |
active, confirmed |
other |
Coastal California |
33.7000 |
-118.3167 |
10 |
1984 or earlier, likely by SCUBA |
Capo Miseno, Gulf of Naples |
active, confirmed |
other |
Coastal Italy |
40.7833 |
14.0833 |
20 |
1982 or earlier, likely by SCUBA |
Capo Palinuro |
active, confirmed |
other |
Coastal Italy |
40.0167 |
15.2667 |
30 |
1990 or earlier, likely by SCUBA |
Prony Bay |
active, confirmed |
other |
|
-22.3333 |
166.8333 |
50 |
1979 or earlier, likely SCUBA |
Punta Banda |
active, confirmed |
other |
Coastal Baja California |
31.7500 |
-116.7500 |
30 |
1960's commercial abalone divers |
Vema Fracture Zone |
active, inferred |
other |
N MAR |
10.7100 |
-42.6800 |
5180 |
2015 plume only |
Punta Mita, Bahia de Banderas |
active, confirmed |
other |
Coastal Mexico |
20.7700 |
-105.5200 |
10 |
1997 photo/video most likely by SCUBA |
Dorado Outcrop |
active, confirmed |
other |
|
9.0800 |
-87.0950 |
3000 |
2013 ROV Jason Dive J2-751 |
San Felipe |
active, inferred |
other |
Coastal Baja California |
31.0000 |
-114.8000 |
1 |
1982 or earlier, likely from shore |