Quakes · South Pacific Ocean 14 39.2 1 30 — Quakes · North Pacific Ocean 8 24.2 0 — — Nav aids · South Atlantic Ocean long running 6 571 22 1,088 — Spills · North Pacific Ocean 5 49 2 27 — Nav aids · South Pacific Ocean long running 4 564.5 20 1,468 — Cable ops · Arabian Sea 4 355 14 176 — Surveys · Arabian Sea 4 351.1 15 173 — Spills · Gulf of Mexico 4 71 3 41 — Quakes · Coral Sea long running 4 41.6 2 860 — Surveys · Indian Ocean long running 3 501.3 19 1,131 — Spills · North Atlantic Ocean long running 3 74 1 1,349 — Quakes · Bering Sea 2 6 0 — — Quakes · Eastern China Sea 2 6 0 — — Nav aids · North Atlantic Ocean long running 1 938.2 31 1,554 — Exercises · North Pacific Ocean long running 1 469.5 16 522 — Wrecks · Arabian Sea long running 1 332.8 11 1,050 — Wrecks · South Atlantic Ocean long running 1 256.6 9 881 — Wrecks · North Atlantic Ocean long running 1 238.1 8 895 — Exercises · Bay of Bengal 1 218.5 8 95 — Nav aids · Indian Ocean long running 1 158.7 6 951 — Nav aids · Arabian Sea long running 1 158.3 6 1,616 — Other · North Atlantic Ocean long running 1 101.3 4 707 — Exercises · Arabian Sea 1 97.9 4 92 — Other · North Pacific Ocean long running 1 96.7 4 707 — Exercises · Andaman or Burma Sea 1 66.4 3 85 — Nav aids · Gulf of Oman long running 1 59.3 2 723 — Missiles · Indian Ocean 1 39.1 2 103 — Cable ops · South Pacific Ocean long running 1 31.1 2 524 — Other · Adriatic Sea 1 30 1 30 — Spills · The Coastal Waters of Southeast Alaska and British Columbia 1 14 0 — — Quakes · Banda Sea 1 3 0 — — Quakes · Caribbean Sea 1 3 0 — — Quakes · Indian Ocean 1 3 0 — — Quakes · North Atlantic Ocean 1 3 0 — — Quakes · Southern Ocean 1 3 0 — — Quakes · Tyrrhenian Sea 1 3 0 — — Wrecks · Bass Strait 1 2 1 2 — Nav aids · Caribbean Sea long running 0 2,108 68 1,869 — Volcanic · Philippine Sea long running 0 465 15 1,929 — Nav aids · North Pacific Ocean long running 0 403 13 1,455 — Nav aids · Gulf of Mexico long running 0 372 12 1,824 — Surveys · South Atlantic Ocean long running 0 341 11 966 — Surveys · North Atlantic Ocean long running 0 310 10 818 — Wrecks · Persian Gulf long running 0 279 9 1,504 — Wrecks · The Northwestern Passages long running 0 279 9 1,671 — Cable ops · North Atlantic Ocean long running 0 248 8 650 — Surveys · Persian Gulf long running 0 248 8 1,320 — Wrecks · Caribbean Sea long running 0 217 7 1,115 — Surveys · The Northwestern Passages long running 0 217 7 1,320 — Nav aids · Celtic Sea long running 0 186 6 932 — Cable ops · Persian Gulf long running 0 186 6 1,105 — Nav aids · South China Sea long running 0 186 6 848 — Surveys · Bay of Bengal 0 155 5 105 — Nav aids · Beaufort Sea long running 0 155 5 1,328 — Nav aids · Bering Sea long running 0 155 5 1,194 — Mines · Black Sea long running 0 155 5 1,496 — Nav aids · Irish Sea and St. George's Channel long running 0 155 5 842 — Nav aids · Laccadive Sea long running 0 155 5 1,020 — Missiles · North Atlantic Ocean long running 0 155 5 577 — Nav aids · Persian Gulf long running 0 155 5 1,407 — Wrecks · South China Sea long running 0 155 5 2,581 — Surveys · South Pacific Ocean long running 0 155 5 781 — Nav aids · Andaman or Burma Sea long running 0 124 4 1,058 — Surveys · Arctic Ocean long running 0 124 4 888 — Exercises · Black Sea long running 0 124 4 1,469 — Surveys · Black Sea long running 0 124 4 641 — Other · Caribbean Sea long running 0 124 4 1,126 — Cable ops · Celtic Sea long running 0 124 4 699 — Nav aids · English Channel long running 0 124 4 879 — Nav aids · Gulf of Alaska long running 0 124 4 757 — Missiles · South Pacific Ocean long running 0 124 4 507 — Nav aids · Bay of Bengal 0 93 3 148 — Nav aids · Bay of Biscay long running 0 93 3 1,341 — Ordnance · Bay of Biscay long running 0 93 3 1,016 — Spills · Caribbean Sea long running 0 93 3 775 — Nav aids · Great Australian Bight 0 93 3 156 — Exercises · Gulf of California long running 0 93 3 522 — Nav aids · Hudson Strait long running 0 93 3 991 — Surveys · Laccadive Sea long running 0 93 3 1,508 — Exercises · North Atlantic Ocean long running 0 93 3 585 — Missiles · North Pacific Ocean long running 0 93 3 1,127 — Wrecks · North Pacific Ocean long running 0 93 3 1,194 — Other · Persian Gulf long running 0 93 3 1,139 — Cable ops · Philippine Sea long running 0 93 3 693 — Nav aids · Philippine Sea long running 0 93 3 831 — Wrecks · South Pacific Ocean long running 0 93 3 1,093 — Surveys · Timor Sea long running 0 93 3 759 — Exercises · Aegean Sea 0 62 2 56 — Other · Arabian Sea 0 62 2 90 — Nav aids · Arafura Sea long running 0 62 2 693 — Surveys · Bass Strait long running 0 62 2 690 — Wrecks · Bay of Bengal long running 0 62 2 979 — Other · Bay of Biscay long running 0 62 2 1,168 — Surveys · Bay of Biscay long running 0 62 2 629 — Surveys · Bering Sea 0 62 2 260 — War risk · Black Sea long running 0 62 2 1,470 — Exercises · Caribbean Sea long running 0 62 2 921 — Surveys · Caribbean Sea long running 0 62 2 692 — Surveys · Chukchi Sea long running 0 62 2 965 — Nav aids · Coral Sea long running 0 62 2 691 — Wrecks · Coral Sea long running 0 62 2 1,369 — Surveys · Gulf of Mexico long running 0 62 2 634 — Wrecks · Gulf of Mexico long running 0 62 2 1,479 — Cable ops · Indian Ocean long running 0 62 2 739 — Other · Indian Ocean long running 0 62 2 805 — Surveys · Irish Sea and St. George's Channel long running 0 62 2 712 — Surveys · Kara Sea long running 0 62 2 1,345 — Wrecks · Kara Sea long running 0 62 2 896 — Wrecks · Laccadive Sea long running 0 62 2 1,138 — Nav aids · Mediterranean Sea - Eastern Basin long running 0 62 2 1,763 — Cable ops · North Pacific Ocean long running 0 62 2 519 — Debris · North Pacific Ocean 0 62 2 280 — Towing · North Pacific Ocean long running 0 62 2 735 — Volcanic · North Pacific Ocean long running 0 62 2 820 — Nav aids · North Sea long running 0 62 2 729 — Restricted · Persian Gulf long running 0 62 2 449 — Exercises · Philippine Sea 0 62 2 76 — Cable ops · South Atlantic Ocean long running 0 62 2 572 — Incidents · South China Sea 0 62 2 78 — Cable ops · Sulu Sea long running 0 62 2 744 — Nav aids · Tasman Sea long running 0 62 2 694 — Surveys · Tasman Sea long running 0 62 2 774 — Wrecks · Tasman Sea 0 62 2 106 — Missiles · Aegean Sea 0 31 1 56 — Surveys · Andaman or Burma Sea 0 31 1 89 — Wrecks · Arafura Sea long running 0 31 1 810 — Nav aids · Arctic Ocean long running 0 31 1 900 — Cable ops · Bass Strait 0 31 1 83 — Derelicts · Bass Strait long running 0 31 1 718 — Cable ops · Bay of Bengal 0 31 1 78 — Other · Bay of Bengal long running 0 31 1 969 — Debris · Bay of Biscay long running 0 31 1 1,301 — Wrecks · Bay of Biscay long running 0 31 1 672 — Other · Beaufort Sea long running 0 31 1 718 — Surveys · Beaufort Sea long running 0 31 1 965 — Cable ops · Black Sea 0 31 1 175 — Nav aids · Black Sea long running 0 31 1 561 — Other · Black Sea long running 0 31 1 728 — Cable ops · Caribbean Sea long running 0 31 1 785 — Derelicts · Caribbean Sea long running 0 31 1 629 — Surveys · Celtic Sea long running 0 31 1 616 — Other · Davis Strait 0 31 1 130 — Wrecks · Eastern China Sea long running 0 31 1 977 — Wrecks · English Channel long running 0 31 1 713 — Missiles · Great Australian Bight 0 31 1 78 — Nav aids · Gulf of California long running 0 31 1 1,446 — Cable ops · Gulf of Guinea long running 0 31 1 696 — Exercises · Gulf of Mexico long running 0 31 1 593 — Storms · Gulf of Mexico long running 0 31 1 547 — Derelicts · Gulf of Oman 0 31 1 285 — Wrecks · Gulf of Oman 0 31 1 124 — Wrecks · Gulf of Suez long running 0 31 1 802 — Nav aids · Hudson Bay long running 0 31 1 623 — Wrecks · Hudson Bay long running 0 31 1 987 — Wrecks · Hudson Strait 0 31 1 151 — Restricted · Indian Ocean long running 0 31 1 746 — Nav aids · Inner Seas off the West Coast of Scotland long running 0 31 1 565 — Exercises · Irish Sea and St. George's Channel long running 0 31 1 547 — Other · Irish Sea and St. George's Channel long running 0 31 1 708 — Wrecks · Irish Sea and St. George's Channel long running 0 31 1 698 — Exercises · Japan Sea 0 31 1 83 — Missiles · Japan Sea 0 31 1 82 — Cable ops · Java Sea long running 0 31 1 887 — Icebergs · Labrador Sea long running 0 31 1 546 — Containers · Laccadive Sea 0 31 1 304 — Exercises · Laccadive Sea 0 31 1 92 — Cable ops · Ligurian Sea long running 0 31 1 834 — Cable ops · Makassar Strait 0 31 1 63 — Surveys · Makassar Strait 0 31 1 63 — Cable ops · Malacca Strait 0 31 1 93 — Surveys · Malacca Strait 0 31 1 126 — Other · Mediterranean Sea - Eastern Basin long running 0 31 1 708 — Surveys · Mediterranean Sea - Eastern Basin long running 0 31 1 827 — Cable ops · Mediterranean Sea - Western Basin long running 0 31 1 705 — Surveys · Mediterranean Sea - Western Basin long running 0 31 1 574 — Restricted · Mozambique Channel 0 31 1 79 — Structures · Mozambique Channel long running 0 31 1 1,127 — Derelicts · North Atlantic Ocean long running 0 31 1 882 — Structures · North Pacific Ocean 0 31 1 152 — Other · North Sea long running 0 31 1 547 — Surveys · Norwegian Sea long running 0 31 1 704 — Derelicts · Red Sea long running 0 31 1 467 — Nav aids · Sea of Okhotsk long running 0 31 1 426 — Piracy · Singapore Strait 0 31 1 74 — Exercises · South Atlantic Ocean long running 0 31 1 545 — Icebergs · South Atlantic Ocean long running 0 31 1 546 — Cable ops · South China Sea long running 0 31 1 793 — Surveys · South China Sea long running 0 31 1 693 — Spills · South Pacific Ocean 0 31 1 251 — Incidents · South Pacific Ocean 0 31 1 76 — Missiles · Sulu Sea 0 31 1 74 — Cable ops · Tasman Sea 0 31 1 88 — Nav aids · The Coastal Waters of Southeast Alaska and British Columbia long running 0 31 1 1,115 — Nav aids · The Northwestern Passages long running 0 31 1 908 —