Quakes · North Pacific Ocean 22 64.8 1 32 — Spills · The Coastal Waters of Southeast Alaska and British Columbia 4 50 3 40 — Quakes · South Pacific Ocean 4 11.6 1 22 — Wrecks · South China Sea long running 2 143.3 6 2,399 — Spills · Gulf of Mexico 2 40 1 44 — Quakes · Caribbean Sea 2 6 0 — — Volcanic · Philippine Sea long running 1 478.6 16 1,747 — Surveys · Indian Ocean long running 1 427.9 15 949 — Wrecks · The Northwestern Passages long running 1 211 8 1,489 — Cable ops · Persian Gulf long running 1 179.3 6 923 — Wrecks · Caribbean Sea long running 1 161.4 6 933 — Nav aids · Gulf of Oman long running 1 75.5 3 541 — Quakes · Coral Sea long running 1 34.8 1 678 — Spills · North Atlantic Ocean long running 1 33 2 1,167 — Spills · North Pacific Ocean 1 31 0 — — Spills · Gulf of Alaska 1 14 0 — — Quakes · South Atlantic Ocean 1 5.7 0 — — Quakes · Gulf of Alaska 1 3 0 — — Quakes · Solomon Sea 1 3 0 — — Quakes · Philippine Sea 1 0.4 1 0 — Quakes · Java Sea 1 0.3 1 0 — Nav aids · Caribbean Sea long running 0 1,830 61 1,687 — Nav aids · North Atlantic Ocean long running 0 810 27 1,372 — Exercises · North Pacific Ocean 0 540 18 340 — Nav aids · South Pacific Ocean long running 0 510 17 1,286 — Nav aids · South Atlantic Ocean long running 0 480 16 906 — Nav aids · North Pacific Ocean long running 0 390 13 1,273 — Nav aids · Gulf of Mexico long running 0 360 12 1,642 — Exercises · Bay of Bengal 0 330 11 123 — Wrecks · Arabian Sea long running 0 270 9 868 — Surveys · South Atlantic Ocean long running 0 270 9 784 — Surveys · Persian Gulf long running 0 240 8 1,138 — Wrecks · South Atlantic Ocean long running 0 240 8 699 — Nav aids · South China Sea long running 0 240 8 666 — Nav aids · Arabian Sea long running 0 210 7 1,434 — Cable ops · North Atlantic Ocean long running 0 210 7 468 — Surveys · North Atlantic Ocean long running 0 210 7 636 — Wrecks · Persian Gulf long running 0 210 7 1,322 — Surveys · The Northwestern Passages long running 0 210 7 1,138 — Nav aids · Celtic Sea long running 0 180 6 750 — Wrecks · North Atlantic Ocean long running 0 180 6 713 — Surveys · South Pacific Ocean long running 0 180 6 599 — Surveys · Arabian Sea 0 150 5 194 — Mines · Black Sea long running 0 150 5 1,314 — Nav aids · Irish Sea and St. George's Channel long running 0 150 5 660 — Missiles · North Atlantic Ocean long running 0 150 5 395 — Missiles · North Pacific Ocean long running 0 150 5 945 — Missiles · South Pacific Ocean 0 150 5 325 — Wrecks · South Pacific Ocean long running 0 150 5 911 — Surveys · Arctic Ocean long running 0 120 4 706 — Nav aids · Beaufort Sea long running 0 120 4 1,146 — Nav aids · Bering Sea long running 0 120 4 1,012 — Exercises · Black Sea long running 0 120 4 1,287 — Other · Caribbean Sea long running 0 120 4 944 — Cable ops · Celtic Sea long running 0 120 4 517 — Nav aids · Coral Sea long running 0 120 4 509 — Nav aids · English Channel long running 0 120 4 697 — Cable ops · Indian Ocean long running 0 120 4 557 — Exercises · Philippine Sea 0 120 4 117 — Surveys · Sea of Okhotsk 0 120 4 117 — Surveys · Timor Sea long running 0 120 4 577 — Nav aids · Andaman or Burma Sea long running 0 90 3 876 — Cable ops · Arabian Sea 0 90 3 123 — Nav aids · Bay of Biscay long running 0 90 3 1,159 — Ordnance · Bay of Biscay long running 0 90 3 834 — Surveys · Black Sea long running 0 90 3 459 — Spills · Caribbean Sea long running 0 90 3 593 — Nav aids · Gulf of Alaska long running 0 90 3 575 — Exercises · Gulf of California 0 90 3 340 — Nav aids · Hudson Strait long running 0 90 3 809 — Nav aids · Indian Ocean long running 0 90 3 769 — Exercises · Japan Sea 0 90 3 118 — Nav aids · Laccadive Sea long running 0 90 3 838 — Exercises · North Atlantic Ocean long running 0 90 3 403 — Other · North Atlantic Ocean long running 0 90 3 525 — Wrecks · North Pacific Ocean long running 0 90 3 1,012 — Other · Persian Gulf long running 0 90 3 957 — Restricted · Persian Gulf 0 90 3 267 — Cable ops · Philippine Sea long running 0 90 3 511 — Nav aids · Philippine Sea long running 0 90 3 649 — Exercises · South China Sea 0 90 3 117 — Exercises · Arabian Sea 0 60 2 126 — Nav aids · Arafura Sea long running 0 60 2 511 — Nav aids · Bay of Bengal long running 0 60 2 392 — Surveys · Bay of Bengal 0 60 2 111 — Wrecks · Bay of Bengal long running 0 60 2 797 — Other · Bay of Biscay long running 0 60 2 986 — Surveys · Bay of Biscay long running 0 60 2 447 — Surveys · Bering Sea 0 60 2 78 — War risk · Black Sea long running 0 60 2 1,288 — Exercises · Caribbean Sea long running 0 60 2 739 — Surveys · Caribbean Sea long running 0 60 2 510 — Surveys · Chukchi Sea long running 0 60 2 783 — Wrecks · Coral Sea long running 0 60 2 1,187 — Surveys · Gulf of Mexico long running 0 60 2 452 — Exercises · Indian Ocean 0 60 2 109 — Missiles · Indian Ocean 0 60 2 137 — Other · Indian Ocean long running 0 60 2 623 — Surveys · Irish Sea and St. George's Channel long running 0 60 2 530 — Surveys · Kara Sea long running 0 60 2 1,163 — Wrecks · Kara Sea long running 0 60 2 714 — Nav aids · Mediterranean Sea - Eastern Basin long running 0 60 2 1,581 — Cable ops · North Pacific Ocean 0 60 2 337 — Debris · North Pacific Ocean 0 60 2 98 — Other · North Pacific Ocean long running 0 60 2 525 — Towing · North Pacific Ocean long running 0 60 2 553 — Volcanic · North Pacific Ocean long running 0 60 2 638 — Nav aids · North Sea long running 0 60 2 547 — Nav aids · Persian Gulf long running 0 60 2 1,225 — Cable ops · South Atlantic Ocean long running 0 60 2 390 — Piracy · South China Sea 0 60 2 109 — Spills · South Pacific Ocean 0 60 2 119 — Cable ops · Sulu Sea long running 0 60 2 562 — Exercises · Andaman or Burma Sea 0 30 1 123 — Wrecks · Arafura Sea long running 0 30 1 628 — Nav aids · Arctic Ocean long running 0 30 1 718 — Derelicts · Bass Strait long running 0 30 1 536 — Surveys · Bass Strait long running 0 30 1 508 — Wrecks · Bass Strait 0 30 1 125 — Other · Bay of Bengal long running 0 30 1 787 — Debris · Bay of Biscay long running 0 30 1 1,119 — Wrecks · Bay of Biscay long running 0 30 1 490 — Other · Beaufort Sea long running 0 30 1 536 — Surveys · Beaufort Sea long running 0 30 1 783 — Nav aids · Black Sea long running 0 30 1 379 — Other · Black Sea long running 0 30 1 546 — Cable ops · Caribbean Sea long running 0 30 1 603 — Derelicts · Caribbean Sea long running 0 30 1 447 — Surveys · Celtic Sea long running 0 30 1 434 — Wrecks · Eastern China Sea long running 0 30 1 795 — Wrecks · English Channel long running 0 30 1 531 — Nav aids · Gulf of California long running 0 30 1 1,264 — Cable ops · Gulf of Guinea long running 0 30 1 514 — Exercises · Gulf of Mexico long running 0 30 1 411 — Storms · Gulf of Mexico long running 0 30 1 365 — Wrecks · Gulf of Mexico long running 0 30 1 1,297 — Derelicts · Gulf of Oman 0 30 1 103 — Wrecks · Gulf of Suez long running 0 30 1 620 — Incidents · Gulf of Thailand 0 30 1 119 — Nav aids · Hudson Bay long running 0 30 1 441 — Wrecks · Hudson Bay long running 0 30 1 805 — Restricted · Indian Ocean long running 0 30 1 564 — Wrecks · Indian Ocean 0 30 1 131 — Nav aids · Inner Seas off the West Coast of Scotland long running 0 30 1 383 — Exercises · Irish Sea and St. George's Channel long running 0 30 1 365 — Other · Irish Sea and St. George's Channel long running 0 30 1 526 — Wrecks · Irish Sea and St. George's Channel long running 0 30 1 516 — Cable ops · Java Sea long running 0 30 1 705 — Icebergs · Labrador Sea 0 30 1 364 — Containers · Laccadive Sea 0 30 1 122 — Exercises · Laccadive Sea 0 30 1 181 — Missiles · Laccadive Sea 0 30 1 106 — Incidents · Laccadive Sea 0 30 1 113 — Surveys · Laccadive Sea long running 0 30 1 1,326 — Wrecks · Laccadive Sea long running 0 30 1 956 — Cable ops · Ligurian Sea long running 0 30 1 652 — Other · Mediterranean Sea - Eastern Basin long running 0 30 1 526 — Surveys · Mediterranean Sea - Eastern Basin long running 0 30 1 645 — Cable ops · Mediterranean Sea - Western Basin long running 0 30 1 523 — Surveys · Mediterranean Sea - Western Basin long running 0 30 1 392 — Structures · Mozambique Channel long running 0 30 1 945 — Derelicts · North Atlantic Ocean long running 0 30 1 700 — Other · North Sea long running 0 30 1 365 — Surveys · Norwegian Sea long running 0 30 1 522 — Exercises · Persian Gulf 0 30 1 106 — Structures · Persian Gulf 0 30 1 84 — Missiles · Philippine Sea 0 30 1 106 — Surveys · Philippine Sea 0 30 1 118 — Derelicts · Red Sea 0 30 1 285 — Incidents · Red Sea 0 30 1 113 — Nav aids · Sea of Okhotsk 0 30 1 244 — Piracy · Singapore Strait 0 30 1 109 — Exercises · South Atlantic Ocean 0 30 1 363 — Icebergs · South Atlantic Ocean 0 30 1 364 — Cable ops · South China Sea long running 0 30 1 611 — Surveys · South China Sea long running 0 30 1 511 — Cable ops · South Pacific Ocean 0 30 1 342 — Nav aids · Tasman Sea long running 0 30 1 512 — Surveys · Tasman Sea long running 0 30 1 592 — Nav aids · The Coastal Waters of Southeast Alaska and British Columbia long running 0 30 1 933 — Nav aids · The Northwestern Passages long running 0 30 1 726 — Debris · Timor Sea 0 30 1 106 —