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
M
A
M
J
J
A
S
O
N
D

Other hazards in the North Atlantic Ocean

Archive · 1,571 cancelled

  1. HYDROLANT 390/002000-02-02 → 2000-02-05
    Seismic survey in progress until 04 feb by M/V western monarch towing eight 5600 meter long cables along…
  2. HYDROLANT 389/002000-02-02 → 2000-02-05
    Seismic survey in progress until 04 feb by M/V western patriot towing 6480 meter long cable along trackline…
  3. HYDROLANT 349/002000-01-30 → 2000-02-02
    Seismic survey in progress until 01 feb by M/V western monarch towing eight 5600 meter long cables along…
  4. HYDROLANT 348/002000-01-30 → 2000-02-02
    Seismic survey in progress until 01 feb by M/V western patriot towing 6480 meter long cable along trackline…
  5. HYDROLANT 295/002000-01-26 → 2000-01-30
    Seismic survey in porgress until 29 jan by M/V western monarch towing eight 5600 meter long cables along…
  6. HYDROLANT 293/002000-01-26 → 2000-01-30
    Seismic survey in progress until 29 jan by M/V western patriot towing 6480 meter long cable along tracline…
  7. HYDROLANT 221/002000-01-21 → 2000-01-26
    Seismic survey 23 thru 26 jan by M/V western monarch towing eight 5600 meter long cables in an area bound by…
  8. HYDROLANT 220/002000-01-21 → 2000-01-26
    Seismic survey 23 thru 26 jan by M/V western patriot towing 6480 meter long cable in area bound by 04-34N…
  9. HYDROLANT 127/002000-01-14 → 2000-01-21
    Seismic survey 15 thru 22 jan by M/V western monarch towing eight 5600 meter long cables along trackline…
  10. HYDROLANT 126/002000-01-14 → 2000-01-21
    Seismic survey 15 thru 22 jan by M/V western patriot towing 6480 meter long cable in area bound by 03-54N…
  11. HYDROLANT 53/002000-01-06 → 2000-01-14
    Seismic survey 07 thru 14 jan by M/V western monarch towing eight 5600 meter long cables in area bound by…
  12. HYDROLANT 52/002000-01-06 → 2000-01-14
    Seismic survey 07 thru 14 jan by M/V western patriot towing 6480 meter long cable in area bound by 03-54N…
  13. HYDROLANT 2864/991999-12-31 → 2000-01-07
    Seismic survey in progress until 06 jan by M/V western patriot towing 6480 meter long cable in area bound by…
  14. HYDROLANT 2853/991999-12-30 → 2000-01-06
    Seismic survey 31 dec thru 07 jan by M/V western monarch towing eight 5600 meter long cables in area bound…
  15. HYDROLANT 2816/991999-12-26 → 1999-12-28
    Seismic survey in progress until 01 jan by M/V mezen towing 7312 meter long cable in area bound by 03-46N…
  16. HYDROLANT 2793/991999-12-24 → 1999-12-30
    Seismic survey in progress until 31 dec by M/V western monarch towing eight 5600 meter long cables in area…
  17. HYDROLANT 2778/991999-12-21 → 1999-12-29
    Seismic survey in progress until 28 dec by M/V western patriot towing 6850 meter long cable in area bound by…
  18. NAVAREA IV 438/991999-12-20 → 2000-01-04
    Underwater cable operations in progress until 03 jan by cableship coastal connector between 05-09.8N…
  19. NAVAREA IV 428/991999-12-14 → 1999-12-31
    Underwater cable operations 15 thru 30 dec by cableship iberus along trackline between 07-05.8N 050-35.8W…
  20. HYDROLANT 2711/991999-12-14 → 1999-12-21
    Seismic survey 14 thru 20 dec by M/V western patriot towing 3.5 mile long cable in area bound by 04-17N…
  21. NAVAREA IV 367/991999-11-01 → 1999-11-08
    Cable operations 04 nov until further notice by cableship fresnel in 40-36.0N 072-35.5W
  22. HYDROLANT 2321/991999-10-31 → 1999-11-06
    Underwater cable operations 311500Z oct until further notice by cableship atlantida along trackline between…
  23. NAVAREA IV 361/991999-10-27 → 1999-10-31
    Cable laying operations in progress until further notice by cableship fresnel within five miles of 20-55N…
  24. NAVAREA IV 354/991999-10-16 → 1999-10-27
    Cable laying operations 20 thru 27 oct by M/V fresnel vicinity of trackline between 17-53N 064-48W and…
  25. HYDROLANT 2171/991999-10-11 → 1999-11-21
    Seismic survey in progress until further notice by M/V mezen towing 100 meter long cable along trackline…
  26. NAVAREA IV 330/991999-09-20 → 1999-10-22
    Cable laying operations 251000Z sep until further notice by M/V fresnel vicinity of trackline joining 40-44N…
  27. HYDROLANT 1943/991999-09-13 → 1999-09-19
    Cable operations in progress until 18 sep by cableship teneo in areas between: a. 28-22.4N 016-21.7W and…
  28. HYDROLANT 1882/991999-09-04 → 1999-11-12
    Underwater cable operations in progress until further notice by cableship coastal connector between 36-45N…
  29. HYDROLANT 1685/991999-08-12 → 1999-08-25
    Cable laying operations 13 thru 24 aug by M/V coastal connector along trackline joining 03-44S 038-27W,…
  30. NAVAREA IV 275/991999-08-09 → 1999-08-14
    Cable operations 10 thru 13 aug by cableship agile along trackline between 06-01N 051-30W and 07-05N 050-36W
  31. HYDROLANT 1660/991999-08-09 → 1999-08-13
    Underwater cable operations 092300Z aug until further notice by cableship atlantida along trackline joining…
  32. HYDROLANT 1580/991999-07-31 → 1999-08-06
    Underwater cable operations in progress until further notice by cableship atlantida along trackline joining…
  33. HYDROLANT 1572/991999-07-30 → 1999-07-31
    Underwater cable operations 302300Z jul until further notice by cableship atlantida along trackline joining…
  34. HYDROLANT 1561/991999-07-29 → 1999-08-04
    Cable operations 300000Z jul until further notice by cableship fresnel along trackline between 22-27N…
  35. HYDROLANT 1541/991999-07-26 → 1999-07-29
    Cable operations 290000Z jul until further notice by cableship fresnel along trackline between 20-23N…
  36. HYDROLANT 1492/991999-07-18 → 1999-07-19
    Seismic survey operations in progress until further notice by M/V geco searcher towing eight three mile long…
  37. NAVAREA IV 229/991999-07-13 → 1999-07-28
    Cable operations 16 thru 27 jul by cableship cable installer along trackline between 05-05N 052-14W and…
  38. HYDROLANT 1308/991999-06-24 → 1999-07-01
    Cable operations in progress until further notice by cableship atlantida in area bound by 36-52.5N…
  39. HYDROLANT 1305/991999-06-23 → 1999-07-01
    Underwater cable operations 261400Z jun until further notice by cableship teliri along trackline joining…
  40. HYDROLANT 1253/991999-06-16 → 1999-06-29
    Underwater cable operations 170400Z to 290230Z jun by M/V cable installer along trackline joining 07-05.5N…
  41. HYDROLANT 1081/991999-05-26 → 1999-06-25
    Cable operations 271700Z may until further notice by cableship raymond croze along trackline joining…
  42. HYDROLANT 1047/991999-05-22 → 1999-05-31
    Underwater cable operations in progress until 30 may by cableship teleri along trackline between 35-54.3N…
  43. HYDROLANT 987/991999-05-16 → 1999-05-25
    Underwater cable operations in progress until 24 may by cableship teneo along trackline between 35-52.2N…
  44. HYDROLANT 972/991999-05-13 → 1999-05-14
    Underwater cable operations in progress until further notice by cableship teneo vicinity 36-11.7N 006-32.5W
  45. HYDROLANT 953/991999-05-09 → 1999-05-13
    Underwater cable operations in progress until further notice by cableship teneo between 35-52.4N 010-22.0W…
  46. HYDROLANT 892/991999-05-03 → 1999-05-08
    Underwater cable operations in progress until 07 may by cableship teneo vicinity 35-54N 010-43W
  47. HYDROLANT 870/991999-04-30 → 1999-05-01
    Cable operations in progress until further notice by cableship iris within two miles of 59-57N 004-50W
  48. HYDROLANT 863/991999-04-30 → 1999-05-03
    Underwater cable operations in progress until 04 may by cableship teneo vicinity 35-53N 010-36W
  49. HYDROLANT 817/991999-04-25 → 1999-04-29
    Underwater operations in progress until further notice by cableship iris along trackline between 59-56N…
  50. HYDROLANT 804/991999-04-24 → 1999-04-25
    Cable operations in progress until further notice by cableship iris along trackline between 59-54.3N…

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 31 · seahazards