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 72/032003-01-11 → 2003-01-14
    Seismic survey in progress until 13 jan by M/V ramform viking towing ten 4600 meter long cables in area…
  2. NAVAREA IV 425/022002-11-12 → 2002-11-19
    Seismic survey in progress until further notice by M/V zephyr 1 towing 8300 meter long cable in area bound…
  3. NAVAREA IV 414/022002-11-04 → 2002-11-06
    Seismic survey in progress until further notice by M/V zephyr 1 towing 8300 meter long cable in area bound…
  4. NAVAREA IV 377/022002-10-02 → 2002-10-29
    Seismic survey in progress until further notice by M/V zephyr 1 towing 8300 meter long cable in area bound…
  5. NAVAREA IV 365/022002-09-21 → 2003-05-03
    Underwater cable operations 22 sep until further notice by cableship ile de batz and cableship ile de re…
  6. NAVAREA IV 362/022002-09-20 → 2002-09-30
    Seismic survey in progress until further notice by M/V zephyr one towing 8300 meter long cable in area bound…
  7. HYDROLANT 2060/022002-09-14 → 2002-09-24
    Underwater cable operations 150200Z sep until further notice by cableship leon thevenin vicinity of…
  8. NAVAREA IV 315/022002-08-27 → 2002-09-21
    Cable laying operations 30 aug until further notice by cableship ile de batz vicinity of trackline joining…
  9. HYDROLANT 1735/022002-08-04 → 2002-08-14
    Underwater operations in progress until further notice by cableship ile de sein along trackline between…
  10. NAVAREA IV 278/022002-07-30 → 2002-08-27
    Cable laying operations 31 jul until further notice by cableship ile de batz along trackline joining 40-00N…
  11. HYDROLANT 1674/022002-07-28 → 2002-07-29
    Underwater operations in progress until further notice by cableship ile de sein vicinity of trackline…
  12. HYDROLANT 1593/022002-07-19 → 2002-07-27
    Underwater operations in progress until further notice by cableship ile de sein along trackline joining…
  13. HYDROLANT 1579/022002-07-17 → 2002-08-11
    Seismic survey in progress until further notice by M/V ramform viking towing ten 3000 meter long cables in…
  14. HYDROLANT 1490/022002-07-06 → 2002-07-21
    Underwater operations in progress until further notice by cableship sovereign vicinity 59-59N 009-18W
  15. HYDROLANT 1471/022002-07-03 → 2002-07-03
    Underwater cable operations in progress until further notice by cableship isle de batz along trackline…
  16. NAVAREA IV 242/022002-07-03 → 2002-07-26
    Underwater cable operations in progress until further notice by cableship ile de batz along trackline…
  17. HYDROLANT 1467/022002-07-03 → 2002-07-26
    Underwater cable operations in progress until further notice by cableship ile de batz along trackline…
  18. HYDROLANT 1371/022002-06-20 → 2002-06-21
    Seismic survey in progress until 20 jun by M/V alize towing eight 7408 meter long cables in area bound by…
  19. HYDROLANT 1343/022002-06-16 → 2002-06-20
    Seismic survey 17 thru 19 jun by M/V alize towing eight 7408 meter long cables in area bound by 03-50N…
  20. HYDROLANT 1307/022002-06-13 → 2002-06-16
    Seismic survey in progress until 160300Z jun by M/V alize towing eight 7408 meter long cables in area bound…
  21. HYDROLANT 1301/022002-06-12 → 2002-06-13
    Seismic survey in progress until 130200Z jun by M/V alize towing eight 7408 meter long cables in area bound…
  22. HYDROLANT 1273/022002-06-08 → 2002-06-10
    Seismic survey in progress until 100300Z jun by M/V alize towing eight 7408 meter long cables in area bound…
  23. HYDROLANT 1254/022002-06-05 → 2002-06-17
    Underwater operations in progress until further notice by cableship forth constructor within one mile of…
  24. HYDROLANT 1252/022002-06-05 → 2002-06-08
    Seismic survey in progress until 080300Z jun by M/V alize towing eight 7408 meter long cables in area bound…
  25. HYDROLANT 1225/022002-06-02 → 2002-06-05
    Seismic survey in progress until 04 jun by M/V alize towing eight 7408 meter long cables in area bound by…
  26. HYDROLANT 1195/022002-05-30 → 2002-06-02
    Seismic survey in progress until 01 jun by M/V alize towing eight 7408 meter long cables in area bound by…
  27. HYDROLANT 1183/022002-05-28 → 2002-05-30
    Seismic survey in progress until 29 may by M/V alize towing eight 7408 meter long cables in area bound by…
  28. HYDROLANT 1153/022002-05-23 → 2002-05-27
    Seismic survey 24 thru 26 may by M/V alize towing eight 7408 meter long cables in area bound by 03-50N…
  29. HYDROLANT 1119/022002-05-17 → 2002-05-20
    Seismic survey in progress until 19 may by M/V alize towing eight 7408 meter long cables in area bound by…
  30. HYDROLANT 1105/022002-05-15 → 2002-05-17
    Seismic survey in progress until 16 may by M/V alize towing eight 7408 meter long cables in area bound by…
  31. HYDROLANT 1083/022002-05-12 → 2002-05-14
    Seismic survey in progress until 13 may by M/V alize towing eight 7408 meter long cables in area bound by…
  32. NAVAREA IV 165/022002-05-07 → 2002-05-15
    Seismic survey in progress until further notice by M/V hudson towing equipment along trackline between…
  33. HYDROLANT 1041/022002-05-05 → 2002-05-08
    Seismic survey in progress until 07 may by M/V alize towing eight 7408 meter long cables in area bound by…
  34. HYDROLANT 1012/022002-05-02 → 2002-05-05
    Seismic survey in progress until 04 may by M/V alize towing eight 7408 meter long cables in area bound by…
  35. HYDROLANT 959/022002-04-26 → 2002-04-29
    Seismic survey in progress until 28 apr by M/V alize towing eight 7408 meter long cables in area bound by…
  36. HYDROLANT 944/022002-04-23 → 2002-05-08
    Underwater operations in progress until 08 may by cableship sovereign vicinity of trackline between 28-52.2N…
  37. HYDROLANT 940/022002-04-23 → 2002-04-26
    Seismic survey in progress until 25 apr by M/V alize towing eight 7408 meter long cables in area bound by…
  38. HYDROLANT 929/022002-04-22 → 2002-04-23
    Seismic survey in progress until 22 apr by M/V alize towing eight 7408 meter long cables in area bound by…
  39. HYDROLANT 905/022002-04-17 → 2002-04-20
    Seismic survey in progress until 16 apr by M/V alize towing eight 7408 meter long cables in area bound by…
  40. HYDROLANT 877/022002-04-16 → 2002-04-17
    Seismic survey in progress until 16 apr by M/V alize towing eight 7408 meter long cables in area bound by…
  41. HYDROLANT 864/022002-04-14 → 2002-04-16
    Seismic survey in progress until 16 apr by M/V alize towing eight 7408 meter long cables in area bound by…
  42. HYDROLANT 834/022002-04-11 → 2002-04-14
    Seismic survey in progress until 140300Z apr by M/V alize towing eight 7408 meter long cables in area bound…
  43. HYDROLANT 809/022002-04-09 → 2002-04-11
    Seismic survey in progress until 10 apr by M/V alize towing eight 7408 meter long cables in area bound by…
  44. HYDROLANT 766/022002-04-04 → 2002-04-07
    Seismic survey in progress until 06 apr by M/V alize towing eight 7408 meter long cables in area bound by…
  45. HYDROLANT 754/022002-04-02 → 2002-04-04
    Seismic survey 03 thru 08 apr by M/V alize towing eight 7408 meter long cables in area bound by 03-50N…
  46. HYDROLANT 737/022002-03-30 → 2002-03-31
    Underwater cable operations in progress until further notice by cableship dock express vicinity 37-54N 011-18W
  47. HYDROLANT 725/022002-03-29 → 2002-04-06
    Underwater operations in progress until further notice by cableship sovereign vicinity 59-53.9N 012-22.8W
  48. NAVAREA IV 86/022002-03-12 → 2002-04-05
    Underwater operations in progress until further notice by cableship sir eric sharp vicinity 05-14.23N…
  49. HYDROLANT 426/022002-02-22 → 2002-03-01
    Underwater cable operations in progress until further notice by cableship dock express 20 vicinity 38-05N…
  50. HYDROLANT 378/022002-02-16 → 2002-02-22
    Underwater cable operations in progress until further notice by cableship dock express 20 vicinity 38-36N…

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 25 · seahazards