Cable & pipeline work in the North Atlantic Ocean

Cable laying, pipeline and seismic operations.

in force
13
last 12 months
13
vs previous 12 (2)
+550%
since 1998
1,584

Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.

In force now · 13

  1. HYDROLANT 1575/26in force2026-08-14
    Underwater operations by cableship Ile d'Yeu continue daily until 13 September along a trackline in the South Atlantic off Brazil; wide berth requested.
    South Atlantic · Brazil
  2. NAVAREA IV 789/26in force2026-08-14
    Underwater operations by cable ship ILE D'YEU along trackline in South Atlantic off Brazil, daily until 13 September, wide berth requested.
    South Atlantic · Brazil
  3. HYDROLANT 1568/26in force2026-08-13
    Cable operations by ship ILE D OUESSANT occur from 15 to 20 August in an area near Canary Islands; wide berth requested.
    North Atlantic · Canary Islands
  4. NAVAREA IV 778/26in force2026-08-11
    Cable ship Cable Vigilance is performing cable operations in the North Atlantic from August 15 to 28, 2026, requesting one mile berth.
    North Atlantic
  5. NAVAREA IV 729/26in force2026-07-26
    Cable operations by cableship Pierre de Fermat are in progress until 25 August between Aruba and Florida; wide berth requested.
    Caribbean Sea · North Atlantic
  6. NAVAREA IV 677/26in force2026-07-10
    Cable operations by cable ship Reliance are in progress until 22 August along a trackline from 21-58.68N 044-28.46W to 30-50.64N 061-00.22W, requesting a two-mile berth.
  7. NAVAREA IV 666/26in force2026-07-08
    In the North Atlantic near Trinidad and Tobago, pipeline operations by vessel Seven Pegasus continue until 29 August 22:00 UTC; 500-meter berth requested.
    North Atlantic
  8. NAVAREA IV 663/26in force2026-07-07
    Cable ship Ile de Molene is doing cable operations off Trinidad and Tobago from July 10 to August 15; one-mile berth requested.
    Atlantic Ocean · Caribbean Sea
  9. NAVAREA IV 659/26in force2026-07-05
    Cable operations by ship Ile d'Yeu from 8 July to 31 August in North Atlantic off French Guiana, one mile berth requested.
    North Atlantic · French Guiana
  10. NAVAREA IV 658/26in force2026-07-05
    Pipeline operations by vessel Saipem Constellation continue until 31 December off Guyana; wide berth requested.
    North Atlantic · Guyana
  11. NAVAREA IV 649/26in force2026-07-02
    Pipeline operations are in progress until 10:00 UTC on October 20 by vessel DLV 2000 near Trinidad and Tobago, with 500-meter berth requested.
    Caribbean Sea
  12. NAVAREA IV 640/26in force2026-06-30
    Cable operations are in progress until August 31 in an area off French Guiana; one mile berth requested.
    North Atlantic · French Guiana
  13. NAVAREA IV 7/26in force2026-01-02
    Pipeline operations are in progress in the North Atlantic through December 31, 2026, by multiple vessels; wide berth is requested.
    North Atlantic

Longest in force

  1. NAVAREA IV 7/26in force2026-01-02 · 232 d
    Pipeline operations are in progress in the North Atlantic through December 31, 2026, by multiple vessels; wide berth is requested.
    North Atlantic
  2. NAVAREA IV 640/26in force2026-06-30 · 53 d
    Cable operations are in progress until August 31 in an area off French Guiana; one mile berth requested.
    North Atlantic · French Guiana
  3. NAVAREA IV 649/26in force2026-07-02 · 51 d
    Pipeline operations are in progress until 10:00 UTC on October 20 by vessel DLV 2000 near Trinidad and Tobago, with 500-meter berth requested.
    Caribbean Sea
  4. NAVAREA IV 658/26in force2026-07-05 · 49 d
    Pipeline operations by vessel Saipem Constellation continue until 31 December off Guyana; wide berth requested.
    North Atlantic · Guyana
  5. NAVAREA IV 659/26in force2026-07-05 · 48 d
    Cable operations by ship Ile d'Yeu from 8 July to 31 August in North Atlantic off French Guiana, one mile berth requested.
    North Atlantic · French Guiana

By year

98
99
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26

By month (all years)

J
F
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A
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O
N
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Other hazards in the North Atlantic Ocean

Archive · 1,571 cancelled

  1. HYDROLANT 1275/002000-04-11 → 2000-04-14
    Seismic survey in progress until 13 apr by M/V western inlet towing 5556 meter long cable in area bound by…
  2. HYDROLANT 1274/002000-04-11 → 2000-04-14
    Seismic survey in progress until 13 apr by M/V western monarch towing eight 5556 meter long cables in area…
  3. HYDROLANT 1273/002000-04-11 → 2000-04-12
    Seismic survey in progress until 13 apr by M/V western patriot towing 6482 meter long cable in area bound by…
  4. HYDROLANT 1254/002000-04-09 → 2000-04-12
    Seismic survey in progress until 11 apr by M/V mezen towing 7408 meter long cable in area bound by 00-12S…
  5. HYDROLANT 1244/002000-04-08 → 2000-04-11
    Seismic survey in progress until 10 apr by M/V western monarch towing eight 5556 meter long cables in area…
  6. HYDROLANT 1239/002000-04-08 → 2000-04-11
    Seismic survey in progress until 10 apr by M/V western patriot towing 6482 meter long cable in area bound by…
  7. HYDROLANT 1238/002000-04-08 → 2000-04-11
    Seismic survey in progress until 10 apr by M/V western inlet towing 5556 meter long cable in area bound by…
  8. HYDROLANT 1219/002000-04-07 → 2000-04-09
    Seismic survey in progress until 08 apr by M/V mezen towing 7408 meter long cable in area bound by 01-03N…
  9. HYDROLANT 1187/002000-04-05 → 2000-04-08
    Seismic survey in progress until 07 apr by M/V western inlet towing 5556 meter long cable in area bound by…
  10. HYDROLANT 1186/002000-04-05 → 2000-04-08
    Seismic survey in progress until 07 apr by M/V western monarch towing eight 5556 meter long cables in area…
  11. HYDROLANT 1185/002000-04-05 → 2000-04-08
    Seismic survey in progress until 07 apr by M/V western patriot towing 6482 meter long cable in area bound by…
  12. HYDROLANT 1157/002000-04-03 → 2000-04-06
    Seismic survey in progress until 05 apr by M/V mezen towing 7408 meter long cable in area bound by 01-30S…
  13. HYDROLANT 1143/002000-04-02 → 2000-04-05
    Seismic survey in progress until 04 apr by M/V western monarch towing eight 5556 meter long cables in area…
  14. HYDROLANT 1142/002000-04-02 → 2000-04-05
    Seismic survey in progress until 04 apr by M/V western patriot towing 6482 meter long cable in area bound by…
  15. HYDROLANT 1126/002000-03-31 → 2000-04-03
    Seismic survey in progress until 02 apr by M/V mezen towing 7408 meter long cable in area bound by 01-30S…
  16. HYDROLANT 1124/002000-03-31 → 2000-04-02
    Seismic survey in progress until 01 apr by M/V western patriot towing 6482 meter long cable in area bound by…
  17. HYDROLANT 1115/002000-03-30 → 2000-04-02
    Seismic survey in progress until 01 apr by M/V western monarch towing eight 5556 meter long cables in area…
  18. HYDROLANT 1081/002000-03-27 → 2000-03-30
    Seismic survey in progress until 29 mar by M/V western patriot towing 6482 meter long cable in area bound by…
  19. HYDROLANT 1079/002000-03-27 → 2000-03-30
    Seismic survey in progress until 29 mar by M/V western monarch towing eight 5556 meter long cables in area…
  20. HYDROLANT 1009/002000-03-21 → 2000-03-27
    Seismic survey in progress until 26 mar by M/V western patriot towing 6482 meter long cable in area bound by…
  21. HYDROLANT 1008/002000-03-21 → 2000-03-27
    Seismic survey in progress until 26 mar by M/V western monarch towing eight 5556 meter long cables in area…
  22. HYDROLANT 974/002000-03-18 → 2000-03-21
    Seismic survey in progress until 20 mar by M/V western monarch towing eight 5556 meter long cables in area…
  23. HYDROLANT 973/002000-03-18 → 2000-03-21
    Seismic survey in progress until 20 mar by M/V western patriot towing 6482 meter long cable in area bound by…
  24. HYDROLANT 906/002000-03-12 → 2000-03-18
    Seismic survey in progress until 17 mar by M/V western patriot towing 6482 meter long cable in area bound by…
  25. HYDROLANT 905/002000-03-12 → 2000-03-18
    Seismic survey in progress until 17 mar by M/V western monarch towing eight 5556 meter long cables in area…
  26. HYDROLANT 895/002000-03-12 → 2000-03-22
    Cable operations in progress until further notice by cableship sovereign within three miles of trackline…
  27. HYDROLANT 868/002000-03-09 → 2000-03-12
    Seismic survey in progress until 11 mar by M/V western monarch towing eight 5556 meter long cables in area…
  28. HYDROLANT 836/002000-03-06 → 2000-03-09
    Seismic survey in progress until 08 mar by M/V western monarch towing eight 5556 meter long cables in area…
  29. HYDROLANT 835/002000-03-06 → 2000-03-12
    Seismic survey in progress until 11 mar by M/V western patriot towing 6500 meter long cable in area bound by…
  30. HYDROLANT 813/002000-03-04 → 2000-03-12
    Cable operations in progress until further notice by cableship sovereign within ten miles of 60-07N 007-58W
  31. HYDROLANT 784/002000-03-03 → 2000-03-06
    Seismic survey in progress until 08 mar by M/V western patriot towing 6500 meter long cable in area bound by…
  32. HYDROLANT 783/002000-03-03 → 2000-03-06
    Seismic survey in progress until 05 mar by M/V western monarch towing eight 5556 meter long cables in area…
  33. HYDROLANT 760/002000-02-29 → 2000-03-03
    Seismic survey in progress until 02 mar by M/V western patriot towing 6500 meter long cable in area bound by…
  34. HYDROLANT 759/002000-02-29 → 2000-03-03
    Seismic survey in progress until 02 mar by M/V western monarch towing eight 5556 meter long cables in area…
  35. HYDROLANT 723/002000-02-26 → 2000-02-29
    Seismic survey in progress until 28 feb by M/V western monarch towing eight 5556 meter long cables along…
  36. HYDROLANT 722/002000-02-26 → 2000-02-29
    Seismic survey in progress until 28 feb by M/V western patriot towing 6482 meter long cable in area bound by…
  37. HYDROLANT 699/002000-02-25 → 2000-07-07
    Cable laying operations 01 mar until further notice by cableships maersk defender, maersk fighter and peter…
  38. NAVAREA IV 65/002000-02-25 → 2000-07-07
    Cable laying operations 01 mar until further notice by cableships maersk defender, maersk fighter and peter…
  39. HYDROLANT 676/002000-02-23 → 2000-02-26
    Seismic survey in progress until 25 feb by M/V western monarch towing eight 5556 meter long cables along…
  40. HYDROLANT 675/002000-02-23 → 2000-02-26
    Seismic survey in progress until 25 feb by M/V western patriot towing 6482 meter long cable in area bound by…
  41. HYDROLANT 637/002000-02-20 → 2000-02-23
    Seismic survey in progress until 22 feb by M/V western monarch towing eight 5556 meter long cables along…
  42. HYDROLANT 635/002000-02-20 → 2000-02-23
    Seismic survey in progress until 22 feb by M/V western patriot towing 6482 meter long cable in area bound by…
  43. HYDROLANT 589/002000-02-17 → 2000-02-20
    Seismic survey in progress until 19 feb by M/V western monarch towing eight 5560 meter long cables along…
  44. HYDROLANT 587/002000-02-17 → 2000-02-20
    Seismic survey in progress until 19 feb by M/V western patriot towing 6500 meter long cable in area bound by…
  45. HYDROLANT 515/002000-02-11 → 2000-02-17
    Seismic survey in progress until 16 feb by M/V western patriot towing 6500 meter long cable in area bound by…
  46. HYDROLANT 513/002000-02-11 → 2000-02-17
    Seismic survey in progress until 16 feb by M/V western monarch towing eight 5560 meter long cables along…
  47. HYDROLANT 471/002000-02-08 → 2000-02-11
    Seismic survey in progress until 10 feb by M/V western patriot towing 6500 meter long cable in area bound by…
  48. HYDROLANT 469/002000-02-08 → 2000-02-11
    Seismic survey in progress until 10 feb by M/V western monarch towing eight 5560 meter long cables along…
  49. HYDROLANT 447/002000-02-05 → 2000-02-08
    Seismic survey in progress until 07 feb by M/V western patriot towing 6482 meter long cable in area bound by…
  50. HYDROLANT 445/002000-02-05 → 2000-02-08
    Seismic survey in progress until 07 feb by M/V western monarch towing eight 5556 meter long cables in area…

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.

Cable & pipeline work in the North Atlantic Ocean — page 30 · seahazards