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 · 48 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
M
A
M
J
J
A
S
O
N
D

Other hazards in the North Atlantic Ocean

Archive · 1,571 cancelled

  1. HYDROLANT 489/072007-03-27 → 2007-03-31
    Seismic survey in progress until 30 mar by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  2. HYDROLANT 446/072007-03-20 → 2007-03-27
    Seismic survey in progress until 26 mar by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  3. HYDROLANT 396/072007-03-14 → 2007-03-19
    Seismic survey in progress 14 thru 18 mar by M/V cgg amadeus towing eight 6500 meter long cables in area…
  4. HYDROLANT 365/072007-03-09 → 2007-03-14
    Seismic survey 09 thru 13 mar by M/V cgg amadeus towing eight 6500 meter long cables in area bound by…
  5. HYDROLANT 331/072007-03-03 → 2007-03-09
    Seismic survey in progress until 08 mar by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  6. HYDROLANT 308/072007-02-27 → 2007-03-03
    Seismic survey in progress until 02 mar by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  7. HYDROLANT 281/072007-02-22 → 2007-02-27
    Seismic survey in progress until 26 feb by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  8. HYDROLANT 260/072007-02-17 → 2007-02-22
    Seismic survey in progress until 21 feb by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  9. HYDROLANT 236/072007-02-13 → 2007-02-17
    Seismic survey in progress until 16 feb by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  10. HYDROLANT 214/072007-02-08 → 2007-02-13
    Seismic survey in progress until 12 feb by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  11. HYDROLANT 190/072007-02-03 → 2007-02-08
    Seismic survey in progress until 07 feb by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  12. HYDROLANT 188/072007-02-03 → 2007-02-25
    Seismic survey in progress until 24 feb by M/V atalante towing 2.5 mile long cable vicinity of trackline…
  13. HYDROLANT 180/072007-02-02 → 2007-02-03
    Seismic survey 03 thru 07 feb by M/V cgg amadeus towing eight 6500 meter long cables in area bound by…
  14. HYDROLANT 175/072007-01-31 → 2007-02-03
    Seismic survey in progress until 02 feb by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  15. HYDROLANT 154/072007-01-27 → 2007-01-31
    Seismic survey in progress until 30 jan by M/V cgg amadeus towing eight 6500 meter long cables in area bound…
  16. HYDROLANT 112/072007-01-19 → 2007-01-27
    Seismic survey in progress until 270359Z apr by M/V cgg amadeus towing eight 6500 meter long cables in area…
  17. NAVAREA IV 25/072007-01-18 → 2007-01-23
    Seismic survey in progress until 22 jan by M/V akademik nemchinov towing 11500 meter long cable in area…
  18. HYDROLANT 100/072007-01-18 → 2007-01-19
    Seismic survey in progress until 030300Z apr by M/V cgg amadeus towing eight 6500 meter long cables in area…
  19. NAVAREA IV 14/072007-01-11 → 2007-01-12
    Seismic survey in progress until 130900Z jan by M/V akademik nemchinov towing 11500 meter long cable along…
  20. NAVAREA IV 12/072007-01-10 → 2007-01-11
    Seismic survey 100630Z to 110530Z jan by M/V akademik nemchinov towing 11500 meter long cable along…
  21. NAVAREA IV 7/072007-01-08 → 2007-01-09
    Seismic survey 080830Z thru 091100Z jan by M/V akademik nemchinov towing 11500 meter long cable along…
  22. HYDROLANT 2325/062006-12-31 → 2007-02-19
    Seismic survey 01 jan thru 28 feb by M/V cgg symphony towing ten 6500 meter long cables in area bound by…
  23. HYDROLANT 2221/062006-12-11 → 2006-12-17
    Underwater operations in progress until further notice by cableship ile de brehat along trackline between…
  24. HYDROLANT 2199/062006-12-08 → 2006-12-11
    Cable operations 09 dec until further notice by cableship ile de brehat in vicinity of 38-08N 009-23W
  25. HYDROLANT 2094/062006-11-19 → 2006-11-23
    Cable laying operations 20 thru 22 nov by cableship teneo along trackline between 27-46.2N 017-54.9W and…
  26. HYDROLANT 2040/062006-11-08 → 2006-11-17
    Cable operations 101400Z nov until further notice by cableship ile de brehat vicinity 37-58.5N 009-29.4W
  27. HYDROLANT 1958/062006-10-24 → 2006-10-30
    Cable operations 262200Z oct to 022200Z nov by cableship ile de brehat vicinity 37-58N 009-30W
  28. HYDROLANT 1150/062006-06-17 → 2006-06-21
    Underwater operations in progress until further notice by cableship tycom reliance vicinity 51-20N 010-16W
  29. HYDROLANT 1149/062006-06-17 → 2006-07-09
    Seismic survey 19 jun thru 08 jul by M/V akademik shatskiy in areas bound by: a. 40-53.6N 013-15.0W,…
  30. NAVAREA IV 161/062006-06-14 → 2006-06-18
    Cable operations in progress until 17 jun by cableship teneo vicinity of 24-38.5N 075-47.1W
  31. HYDROLANT 898/062006-05-11 → 2006-07-06
    Cable operations in progress until further notice by cableship maersk responder in area bound by 60-42.6N…
  32. HYDROLANT 820/062006-04-28 → 2006-06-19
    Seismic survey in progress until further notice by M/V western monarch towing ten 2.5 mile long cables in…
  33. NAVAREA IV 115/062006-04-26 → 2006-04-28
    Underwater operations in progress until 27 apr by cableship teneo in area bound by 22-45.9N 074-12.0W,…
  34. HYDROLANT 596/062006-03-25 → 2006-05-05
    Seismic survey in progress until further notice by M/V charles darwin in vicinity 35-17N 006-38W
  35. HYDROLANT 343/062006-02-17 → 2006-03-18
    Seismic survey in progress until 17 mar by M/V akademik lazarev in area bound by 15-30N 018-00W, 15-30N…
  36. HYDROLANT 278/062006-02-10 → 2006-02-11
    Underwater operations in progress until further notice by cableship leon thevenin with submersible within…
  37. HYDROLANT 244/062006-02-03 → 2006-02-10
    Underwater operations 050600Z to 110600Z feb by cableship leon thevenin with submersible within three miles…
  38. HYDROLANT 2245/052005-12-02 → 2006-03-01
    Seismic survey in progress until 30 apr 06 by M/V geo pacific towing six four mile cables in area bound by…
  39. HYDROLANT 2098/052005-11-14 → 2006-03-16
    Seismic survey 15 nov thru 15 mar by M/V geo pacific towing six 6000 meter long cables in area bound by…
  40. NAVAREA IV 376/052005-11-14 → 2006-04-22
    Seismic survey in progress until further notice by M/V alize towing eight four and half mile long cables…
  41. HYDROLANT 1933/052005-10-23 → 2005-10-28
    Cable operations 260400Z oct until further notice by cableship rene descartes in area bound by 36-00.0N…
  42. NAVAREA IV 297/052005-09-20 → 2005-09-22
    Underwater operations in progress until 21 sep by cableship cable innovator in area bound by 26-32.6N…
  43. HYDROLANT 1336/052005-07-22 → 2006-01-25
    Seismic survey 23 jul until further notice by M/V professor logachev in area bound by 36-45N 010-00W, 36-45N…
  44. HYDROLANT 1240/052005-07-03 → 2005-08-11
    Pipeline operations in progress until further notice by M/V calamity jane and M/V solitare along trackline…
  45. HYDROLANT 1003/052005-05-28 → 2005-06-01
    Seismic survey in progress until 31 may by M/V pelagia in vicinity 35-18N 006-48W
  46. HYDROLANT 634/052005-04-06 → 2005-04-22
    Seismic survey in progress until 21 apr along trackline between 32-30N 011-30W and 30-35N 011-30W
  47. HYDROLANT 1741/042004-10-29 → 2004-11-03
    Seismic survey in progress 300300Z oct to 030259Z nov by M/V alize towing 8000 meter long cables in area…
  48. HYDROLANT 1728/042004-10-26 → 2004-10-29
    Seismic survey in progress 260300Z to 290259Z oct by M/V alize towing 8000 meter long cables in area bound…
  49. HYDROLANT 1705/042004-10-22 → 2004-10-26
    Seismic survey in progress until 260259Z oct by M/V cgg alize towing 8000 meter long cable in area bound by…
  50. HYDROLANT 1690/042004-10-19 → 2004-10-22
    Seismic survey in progress until 220259Z oct by M/V cgg alize towing 8000 meter long cable in area bound by…

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 23 · seahazards