Quakes · North Pacific Ocean 60 125.2 42 17 — Quakes · South Pacific Ocean 13 37.7 2 33 — Spills · Gulf of Mexico 5 76 1 35 — Quakes · Indian Ocean 4 12 0 — — Quakes · Eastern China Sea 3 9 0 — — Nav aids · Caribbean Sea long running 2 1,828.4 60 1,626 — Surveys · Bering Sea 2 34.8 2 17 — Spills · The Coastal Waters of Southeast Alaska and British Columbia 2 17 2 44 — Quakes · Bismarck Sea 2 6 0 — — Nav aids · North Atlantic Ocean long running 1 784.5 26 1,311 — Wrecks · South Atlantic Ocean long running 1 229.9 8 638 — Nav aids · Arabian Sea long running 1 210.6 7 1,373 — Cable ops · Persian Gulf long running 1 132.9 5 862 — Wrecks · North Pacific Ocean long running 1 76.5 3 951 — Spills · South Pacific Ocean 1 40 2 58 — Structures · Persian Gulf 1 23.5 1 23 — Spills · Gulf of Alaska 1 7 1 7 — Spills · North Pacific Ocean 1 5 1 5 — Quakes · Southern Ocean 1 3.4 0 — — Quakes · Andaman or Burma Sea 1 3 0 — — Quakes · Arctic Ocean 1 3 0 — — Quakes · Banda Sea 1 3 0 — — Quakes · Bay of Bengal 1 3 0 — — Quakes · Gulf of Tomini 1 3 0 — — Quakes · Molukka Sea 1 3 0 — — Quakes · North Atlantic Ocean 1 3 0 — — Quakes · South China Sea 1 3 0 — — Quakes · Tasman Sea 1 3 0 — — Quakes · South Atlantic Ocean 1 1.6 1 1 — Exercises · North Pacific Ocean 0 558 18 279 — Nav aids · South Pacific Ocean long running 0 527 17 1,225 — Nav aids · South Atlantic Ocean long running 0 496 16 845 — Volcanic · Philippine Sea long running 0 465 15 1,686 — Surveys · Indian Ocean long running 0 434 14 888 — Nav aids · North Pacific Ocean long running 0 403 13 1,212 — Nav aids · Gulf of Mexico long running 0 372 12 1,581 — Exercises · Bay of Bengal 0 341 11 62 — Surveys · South Atlantic Ocean long running 0 279 9 723 — Wrecks · Arabian Sea long running 0 248 8 807 — Surveys · Persian Gulf long running 0 248 8 1,077 — Nav aids · South China Sea long running 0 248 8 605 — Cable ops · North Atlantic Ocean long running 0 217 7 407 — Surveys · North Atlantic Ocean long running 0 217 7 575 — Wrecks · Persian Gulf long running 0 217 7 1,261 — Surveys · The Northwestern Passages long running 0 217 7 1,077 — Nav aids · Celtic Sea long running 0 186 6 689 — Wrecks · North Atlantic Ocean long running 0 186 6 652 — Surveys · South Pacific Ocean long running 0 186 6 538 — Wrecks · The Northwestern Passages long running 0 186 6 1,428 — Surveys · Arabian Sea 0 155 5 133 — Mines · Black Sea long running 0 155 5 1,253 — Wrecks · Caribbean Sea long running 0 155 5 872 — Nav aids · Irish Sea and St. George's Channel long running 0 155 5 599 — Missiles · North Atlantic Ocean 0 155 5 334 — Missiles · North Pacific Ocean long running 0 155 5 884 — Missiles · South Pacific Ocean 0 155 5 264 — Wrecks · South Pacific Ocean long running 0 155 5 850 — Surveys · Arctic Ocean long running 0 124 4 645 — Nav aids · Bering Sea long running 0 124 4 951 — Exercises · Black Sea long running 0 124 4 1,226 — Other · Caribbean Sea long running 0 124 4 883 — Cable ops · Celtic Sea long running 0 124 4 456 — Nav aids · Coral Sea long running 0 124 4 448 — Nav aids · English Channel long running 0 124 4 636 — Cable ops · Indian Ocean long running 0 124 4 496 — Exercises · Philippine Sea 0 124 4 56 — Surveys · Sea of Okhotsk 0 124 4 56 — Wrecks · South China Sea long running 0 124 4 2,338 — Surveys · Timor Sea long running 0 124 4 516 — Nav aids · Andaman or Burma Sea long running 0 93 3 815 — Cable ops · Arabian Sea 0 93 3 62 — Nav aids · Bay of Biscay long running 0 93 3 1,098 — Ordnance · Bay of Biscay long running 0 93 3 773 — Nav aids · Beaufort Sea long running 0 93 3 1,085 — Surveys · Black Sea long running 0 93 3 398 — Spills · Caribbean Sea long running 0 93 3 532 — Nav aids · Gulf of Alaska long running 0 93 3 514 — Exercises · Gulf of California 0 93 3 279 — Nav aids · Hudson Strait long running 0 93 3 748 — Nav aids · Indian Ocean long running 0 93 3 708 — Exercises · Japan Sea 0 93 3 57 — Nav aids · Laccadive Sea long running 0 93 3 777 — Exercises · North Atlantic Ocean 0 93 3 342 — Other · North Atlantic Ocean long running 0 93 3 464 — Other · Persian Gulf long running 0 93 3 896 — Restricted · Persian Gulf 0 93 3 206 — Cable ops · Philippine Sea long running 0 93 3 450 — Nav aids · Philippine Sea long running 0 93 3 588 — Exercises · South China Sea 0 93 3 56 — Exercises · Arabian Sea 0 62 2 65 — Nav aids · Arafura Sea long running 0 62 2 450 — Nav aids · Bay of Bengal 0 62 2 331 — Surveys · Bay of Bengal 0 62 2 50 — Wrecks · Bay of Bengal long running 0 62 2 736 — Other · Bay of Biscay long running 0 62 2 925 — Surveys · Bay of Biscay long running 0 62 2 386 — War risk · Black Sea long running 0 62 2 1,227 — Exercises · Caribbean Sea long running 0 62 2 678 — Surveys · Caribbean Sea long running 0 62 2 449 — Surveys · Chukchi Sea long running 0 62 2 722 — Wrecks · Coral Sea long running 0 62 2 1,126 — Surveys · Gulf of Mexico long running 0 62 2 391 — Nav aids · Gulf of Oman long running 0 62 2 480 — Exercises · Indian Ocean 0 62 2 48 — Missiles · Indian Ocean 0 62 2 76 — Other · Indian Ocean long running 0 62 2 562 — Surveys · Irish Sea and St. George's Channel long running 0 62 2 469 — Surveys · Kara Sea long running 0 62 2 1,102 — Wrecks · Kara Sea long running 0 62 2 653 — Nav aids · Mediterranean Sea - Eastern Basin long running 0 62 2 1,520 — Cable ops · North Pacific Ocean 0 62 2 276 — Debris · North Pacific Ocean 0 62 2 37 — Other · North Pacific Ocean long running 0 62 2 464 — Towing · North Pacific Ocean long running 0 62 2 492 — Volcanic · North Pacific Ocean long running 0 62 2 577 — Nav aids · North Sea long running 0 62 2 486 — Nav aids · Persian Gulf long running 0 62 2 1,164 — Cable ops · South Atlantic Ocean 0 62 2 329 — Piracy · South China Sea 0 62 2 48 — Cable ops · Sulu Sea long running 0 62 2 501 — Spills · North Atlantic Ocean long running 0 57 1 1,106 — Exercises · Andaman or Burma Sea 0 31 1 62 — Wrecks · Arafura Sea long running 0 31 1 567 — Nav aids · Arctic Ocean long running 0 31 1 657 — Derelicts · Bass Strait long running 0 31 1 475 — Surveys · Bass Strait long running 0 31 1 447 — Wrecks · Bass Strait 0 31 1 64 — Other · Bay of Bengal long running 0 31 1 726 — Debris · Bay of Biscay long running 0 31 1 1,058 — Wrecks · Bay of Biscay long running 0 31 1 429 — Other · Beaufort Sea long running 0 31 1 475 — Surveys · Beaufort Sea long running 0 31 1 722 — Nav aids · Black Sea 0 31 1 318 — Other · Black Sea long running 0 31 1 485 — Cable ops · Caribbean Sea long running 0 31 1 542 — Derelicts · Caribbean Sea long running 0 31 1 386 — Surveys · Celtic Sea long running 0 31 1 373 — Quakes · Coral Sea long running 0 31 1 617 — Wrecks · Eastern China Sea long running 0 31 1 734 — Wrecks · English Channel long running 0 31 1 470 — Nav aids · Gulf of California long running 0 31 1 1,203 — Cable ops · Gulf of Guinea long running 0 31 1 453 — Exercises · Gulf of Mexico 0 31 1 350 — Storms · Gulf of Mexico 0 31 1 304 — Wrecks · Gulf of Mexico long running 0 31 1 1,236 — Derelicts · Gulf of Oman 0 31 1 42 — Wrecks · Gulf of Suez long running 0 31 1 559 — Incidents · Gulf of Thailand 0 31 1 58 — Nav aids · Hudson Bay long running 0 31 1 380 — Wrecks · Hudson Bay long running 0 31 1 744 — Restricted · Indian Ocean long running 0 31 1 503 — Wrecks · Indian Ocean 0 31 1 70 — Nav aids · Inner Seas off the West Coast of Scotland 0 31 1 322 — Exercises · Irish Sea and St. George's Channel 0 31 1 304 — Other · Irish Sea and St. George's Channel long running 0 31 1 465 — Wrecks · Irish Sea and St. George's Channel long running 0 31 1 455 — Cable ops · Java Sea long running 0 31 1 644 — Icebergs · Labrador Sea 0 31 1 303 — Containers · Laccadive Sea 0 31 1 61 — Exercises · Laccadive Sea 0 31 1 120 — Missiles · Laccadive Sea 0 31 1 45 — Incidents · Laccadive Sea 0 31 1 52 — Surveys · Laccadive Sea long running 0 31 1 1,265 — Wrecks · Laccadive Sea long running 0 31 1 895 — Cable ops · Ligurian Sea long running 0 31 1 591 — Other · Mediterranean Sea - Eastern Basin long running 0 31 1 465 — Surveys · Mediterranean Sea - Eastern Basin long running 0 31 1 584 — Cable ops · Mediterranean Sea - Western Basin long running 0 31 1 462 — Surveys · Mediterranean Sea - Western Basin 0 31 1 331 — Structures · Mozambique Channel long running 0 31 1 884 — Derelicts · North Atlantic Ocean long running 0 31 1 639 — Other · North Sea 0 31 1 304 — Surveys · Norwegian Sea long running 0 31 1 461 — Exercises · Persian Gulf 0 31 1 45 — Missiles · Philippine Sea 0 31 1 45 — Surveys · Philippine Sea 0 31 1 57 — Derelicts · Red Sea 0 31 1 224 — Incidents · Red Sea 0 31 1 52 — Nav aids · Sea of Okhotsk 0 31 1 183 — Piracy · Singapore Strait 0 31 1 48 — Exercises · South Atlantic Ocean 0 31 1 302 — Icebergs · South Atlantic Ocean 0 31 1 303 — Cable ops · South China Sea long running 0 31 1 550 — Surveys · South China Sea long running 0 31 1 450 — Cable ops · South Pacific Ocean 0 31 1 281 — Nav aids · Tasman Sea long running 0 31 1 451 — Surveys · Tasman Sea long running 0 31 1 531 — Nav aids · The Coastal Waters of Southeast Alaska and British Columbia long running 0 31 1 872 — Nav aids · The Northwestern Passages long running 0 31 1 665 — Debris · Timor Sea 0 31 1 45 — Spills · Bering Sea 0 13 0 — — Spills · Beaufort Sea 0 7 0 — —