Don Joao de Castro Bank |
active, confirmed |
mid-ocean ridge |
Terceira Rift |
38.2300 |
-26.6300 |
45 |
1995 SCUBA |
Baby Bare Seamount |
active, confirmed |
mid-ocean ridge |
JdF Ridge |
47.7100 |
-127.7870 |
2600 |
1995 submersible Alvin |
Salty Dawg Field |
active, confirmed |
mid-ocean ridge |
JdF Ridge |
47.9822 |
-129.0756 |
2200 |
1995 submersible Alvin, followed by ROV ROPOS |
Stealth |
active, confirmed |
mid-ocean ridge |
S EPR |
-17.6167 |
-113.2330 |
2600 |
1996 Argo II towed video; 1993 plume only; 1998 submersible Alvin |
Gorda Ridge, EP96A |
active, inferred |
mid-ocean ridge |
Gorda Ridge |
42.6790 |
-126.7820 |
3150 |
1996 camera/temperature tow followed by ROV did not confirm hydrothermal activity |
Rumble II West |
active, inferred |
arc volcano |
Kermadec Arc |
-35.3600 |
178.5170 |
1500 |
1996 dredging only; 1999 plume only |
Montserrat Offshore Springs |
active, confirmed |
arc volcano |
Lesser Antilles Arc |
16.7100 |
-62.2300 |
10 |
1996 or earlier (assume SCUBA) |
Tutum Bay, Ambitle Island |
active, confirmed |
arc volcano |
Tabar-Feni Arc |
-4.0833 |
153.5500 |
10 |
1996 or earlier, likely by SCUBA |
Banua Wuhu submarine volcano |
active, confirmed |
arc volcano |
Sangihe Arc |
3.1380 |
125.4910 |
10 |
1996 or earlier, likely by SCUBA |
GEISEIR site 2, segment J4 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.2520 |
79.1030 |
2800 |
1996 plume and dredge only |
Boomerang Seamount |
active, inferred |
mid-ocean ridge |
SEIR |
-37.7217 |
77.8250 |
850 |
1996 plume and wax core only |
GEISEIR site 3, segment J4 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.7720 |
79.7530 |
2800 |
1996 plume only |
GEISEIR site 1, segment J2 |
active, inferred |
mid-ocean ridge |
SEIR |
-39.4400 |
78.0920 |
2270 |
1996 plume only |
GEISEIR site 5, segment K1 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.2420 |
81.1580 |
2860 |
1996 plume only; 2007 plume only |
GEISEIR site 22, segment L3 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.1130 |
88.0420 |
2400 |
1996 plume only; 2009 plume only |
GEISEIR site 10, segment K4 |
active, inferred |
mid-ocean ridge |
SEIR |
-42.4770 |
82.7100 |
2500 |
1996 plume only; 2010 plume only |
GEISEIR site 7, segment K3 |
active, inferred |
mid-ocean ridge |
SEIR |
-41.8020 |
81.8380 |
2540 |
1996 plume only; 2010 plume only |
Mothra Field |
active, confirmed |
mid-ocean ridge |
JdF Ridge |
47.9233 |
-129.1082 |
2270 |
1996 ROV ROPOS; 1986 plume only |
S-OH1 |
active, inferred |
mid-ocean ridge |
N MAR |
34.5330 |
-36.8500 |
3000 |
1996 submersible Nautile did not find active vents; 2000 or earlier plume only |
Puy des Folles |
active, inferred |
mid-ocean ridge |
N MAR |
20.5083 |
-45.6417 |
2000 |
1996 submersible Nautile observed only inactive vents |
Myojin Knoll |
active, confirmed |
arc volcano |
Izu-Bonin Arc |
32.1033 |
139.8683 |
1360 |
1996 submersible Shinkai 2000 |
Knipovich Ridge, 76 48'N |
active, inferred |
mid-ocean ridge |
Knipovich Ridge |
76.7833 |
8.0000 |
3500 |
1996 temperature anomaly and towed video did not confirm activity |
SuSu Knolls |
active, confirmed |
back-arc spreading center |
Manus Basin |
-3.8000 |
152.1000 |
1520 |
1996 towed camera/video; 1993 plume only |
Hook Ridge |
active, confirmed |
back-arc spreading center |
Bransfield Strait |
-62.1940 |
-57.2745 |
1080 |
1997 hot sediment; 1995 plume only; 1999 even hotter sediment |
Punta Mita, Bahia de Banderas |
active, confirmed |
other |
Coastal Mexico |
20.7700 |
-105.5200 |
10 |
1997 photo/video most likely by SCUBA |
EPR, southern 17 N segment |
active, inferred |
mid-ocean ridge |
N EPR |
16.5800 |
-105.3000 |
2700 |
1997 plume only |
SWIR, Plume 5 |
active, inferred |
mid-ocean ridge |
SWIR |
-27.9170 |
64.4500 |
4000 |
1997 plume only |
SWIR, Plume 6 |
active, inferred |
mid-ocean ridge |
SWIR |
-27.7670 |
65.1330 |
3200 |
1997 plume only |
EPR, Manzanillo Spreading Segment |
active, inferred |
mid-ocean ridge |
N EPR |
18.2500 |
-106.3000 |
2600 |
1997 plume only |
EPR, mid 17 N segment |
active, inferred |
mid-ocean ridge |
N EPR |
17.0000 |
-105.3800 |
2750 |
1997 plume only |