Quakes · South Pacific Ocean 9 25.4 3 33 — Spills · Gulf of Mexico 8 92 5 44 — Quakes · North Pacific Ocean 8 24 0 — — Spills · Gulf of Alaska 3 32 2 44 — Nav aids · North Atlantic Ocean long running 2 507.8 18 946 — Surveys · North Atlantic Ocean 2 348.2 12 210 — Spills · North Atlantic Ocean long running 2 60 2 741 — Surveys · Bay of Biscay 2 32.7 2 21 — Nav aids · Caribbean Sea long running 1 1,176 38 1,261 — Nav aids · South Atlantic Ocean long running 1 908.9 28 480 — Cable ops · North Atlantic Ocean 1 338.3 11 155 — Wrecks · Caribbean Sea long running 1 146.9 5 507 — Nav aids · Celtic Sea 1 102.8 4 324 — Nav aids · Hudson Strait long running 1 71.2 3 383 — Spills · Caribbean Sea 1 70 3 167 — Cable ops · South China Sea 1 59.6 2 185 — Nav aids · Tasman Sea 1 44.7 2 86 — Surveys · Sea of Okhotsk 1 43.5 2 50 — Quakes · Coral Sea 1 34 1 252 — Surveys · Gulf of Mexico 1 26.3 1 364 — Derelicts · Caribbean Sea 1 21 1 21 — Spills · North Pacific Ocean 1 19 0 — — Spills · The Coastal Waters of Southeast Alaska and British Columbia 1 18 0 — — Nav aids · Hudson Bay 1 15.5 1 15 — Cable ops · Timor Sea 1 10.9 1 10 — Surveys · Celtic Sea 1 8.2 1 8 — Spills · Bering Sea 1 7 1 7 — Quakes · Banda Sea 1 3 0 — — Quakes · Bismarck Sea 1 3 0 — — Quakes · Celebes Sea 1 3 0 — — Quakes · Indian Ocean 1 3 0 — — Quakes · Philippine Sea 1 3 0 — — Quakes · South China Sea 1 3 0 — — Spills · South China Sea 1 3 1 3 — Quakes · Southern Ocean 1 3 0 — — Nav aids · South Pacific Ocean long running 0 341 11 860 — Nav aids · Gulf of Mexico long running 0 310 10 1,216 — Volcanic · Philippine Sea long running 0 310 10 1,321 — Other · Gulf of Mexico 0 279 9 76 — Nav aids · North Pacific Ocean long running 0 279 9 847 — Wrecks · Arabian Sea long running 0 248 8 442 — Other · Caribbean Sea long running 0 217 7 518 — Surveys · Indian Ocean long running 0 217 7 523 — Surveys · The Northwestern Passages long running 0 217 7 712 — Surveys · South Pacific Ocean 0 212 6 173 — Wrecks · North Atlantic Ocean 0 186 6 287 — Cable ops · Persian Gulf long running 0 186 6 497 — Wrecks · Persian Gulf long running 0 186 6 896 — Nav aids · South China Sea 0 186 6 240 — Wrecks · The Northwestern Passages long running 0 186 6 1,063 — Surveys · South Atlantic Ocean 0 157 5 358 — Nav aids · Andaman or Burma Sea long running 0 155 5 450 — Nav aids · Arabian Sea long running 0 155 5 1,008 — Wrecks · South Atlantic Ocean 0 155 5 273 — Mines · Black Sea long running 0 124 4 888 — Nav aids · English Channel 0 124 4 271 — Missiles · North Atlantic Ocean 0 124 4 47 — Exercises · Aegean Sea 0 93 3 209 — Surveys · Arctic Ocean 0 93 3 280 — Nav aids · Bay of Biscay long running 0 93 3 733 — Ordnance · Bay of Biscay long running 0 93 3 408 — Nav aids · Beaufort Sea long running 0 93 3 720 — Nav aids · Bering Sea long running 0 93 3 586 — Surveys · Caribbean Sea 0 93 3 84 — Nav aids · Indian Ocean 0 93 3 343 — Surveys · Persian Gulf long running 0 93 3 712 — Cable ops · Philippine Sea 0 93 3 85 — Wrecks · South China Sea long running 0 93 3 1,973 — Wrecks · South Pacific Ocean long running 0 93 3 485 — Surveys · Timor Sea 0 93 3 151 — Nav aids · Arafura Sea 0 62 2 85 — Wrecks · Bay of Bengal long running 0 62 2 371 — Other · Bay of Biscay long running 0 62 2 560 — Exercises · Black Sea long running 0 62 2 861 — War risk · Black Sea long running 0 62 2 862 — Surveys · Chukchi Sea 0 62 2 357 — Wrecks · Coral Sea long running 0 62 2 761 — Nav aids · Gulf of Alaska 0 62 2 149 — Cable ops · Indian Ocean 0 62 2 131 — Other · Indian Ocean 0 62 2 197 — Nav aids · Irish Sea and St. George's Channel 0 62 2 234 — Surveys · Kara Sea long running 0 62 2 737 — Wrecks · Kara Sea 0 62 2 288 — Nav aids · Laccadive Sea long running 0 62 2 412 — Other · North Atlantic Ocean 0 62 2 99 — Other · North Pacific Ocean 0 62 2 99 — Towing · North Pacific Ocean 0 62 2 127 — Volcanic · North Pacific Ocean 0 62 2 212 — Wrecks · North Pacific Ocean long running 0 62 2 586 — Nav aids · North Sea 0 62 2 121 — Nav aids · Persian Gulf long running 0 62 2 799 — Other · Persian Gulf long running 0 62 2 531 — Cable ops · Sulu Sea 0 62 2 136 — Missiles · Aegean Sea 0 31 1 197 — Wrecks · Arafura Sea 0 31 1 202 — Nav aids · Arctic Ocean 0 31 1 292 — Derelicts · Bass Strait 0 31 1 110 — Surveys · Bass Strait 0 31 1 82 — Other · Bay of Bengal 0 31 1 361 — Surveys · Bay of Bengal 0 31 1 91 — Debris · Bay of Biscay long running 0 31 1 693 — Wrecks · Bay of Biscay 0 31 1 64 — Other · Beaufort Sea 0 31 1 110 — Surveys · Beaufort Sea 0 31 1 357 — Other · Black Sea 0 31 1 120 — Surveys · Black Sea 0 31 1 33 — Cable ops · Caribbean Sea 0 31 1 177 — Exercises · Caribbean Sea 0 31 1 313 — Cable ops · Celtic Sea 0 31 1 91 — Nav aids · Coral Sea 0 31 1 83 — Wrecks · Eastern China Sea long running 0 31 1 369 — Wrecks · English Channel 0 31 1 105 — Nav aids · Gulf of California long running 0 31 1 838 — Cable ops · Gulf of Guinea 0 31 1 88 — Exercises · Gulf of Mexico 0 31 1 76 — Wrecks · Gulf of Mexico long running 0 31 1 871 — Nav aids · Gulf of Oman 0 31 1 115 — Wrecks · Gulf of Suez 0 31 1 194 — Wrecks · Hudson Bay long running 0 31 1 379 — Restricted · Indian Ocean 0 31 1 138 — Other · Irish Sea and St. George's Channel 0 31 1 100 — Surveys · Irish Sea and St. George's Channel 0 31 1 104 — Wrecks · Irish Sea and St. George's Channel 0 31 1 90 — Cable ops · Java Sea 0 31 1 279 — Icebergs · Labrador Sea 0 31 1 42 — Surveys · Laccadive Sea long running 0 31 1 900 — Wrecks · Laccadive Sea long running 0 31 1 530 — Cable ops · Ligurian Sea 0 31 1 226 — Nav aids · Mediterranean Sea - Eastern Basin long running 0 31 1 1,155 — Other · Mediterranean Sea - Eastern Basin 0 31 1 100 — Surveys · Mediterranean Sea - Eastern Basin 0 31 1 219 — Cable ops · Mediterranean Sea - Western Basin 0 31 1 97 — Surveys · Mediterranean Sea - Western Basin 0 31 1 98 — Structures · Mozambique Channel long running 0 31 1 519 — Derelicts · North Atlantic Ocean 0 31 1 274 — Incidents · North Atlantic Ocean 0 31 1 54 — Missiles · North Pacific Ocean long running 0 31 1 519 — Surveys · Norwegian Sea 0 31 1 96 — Nav aids · Philippine Sea 0 31 1 223 — Surveys · South China Sea 0 31 1 85 — Surveys · Tasman Sea 0 31 1 166 — Nav aids · The Coastal Waters of Southeast Alaska and British Columbia long running 0 31 1 507 — Nav aids · The Northwestern Passages 0 31 1 300 — Quakes · South Atlantic Ocean 0 1.7 0 — —