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
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A
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Other hazards in the North Atlantic Ocean

Archive · 1,571 cancelled

  1. HYDROLANT 1666/042004-10-14 → 2004-10-19
    Seismic survey in progress until 190259Z oct by M/V cgg alize towing 8000 meter long cable in area bound by…
  2. HYDROLANT 1641/042004-10-09 → 2004-10-14
    Seismic survey in progress until 140259Z oct by M/V cgg alize towing 8000 meter long cable in area bound by…
  3. HYDROLANT 1622/042004-10-04 → 2004-10-09
    Seismic survey in progress until 090259Z oct by M/V cgg alize towing 8000 meter long cable in area bound by…
  4. HYDROLANT 1597/042004-09-30 → 2004-10-11
    Cable operations 05 thru 12 oct by cableship ile de brehat vicinity 28-21.22N 017-05.71W
  5. HYDROLANT 1593/042004-09-30 → 2004-10-04
    Seismic survey in progress until 040259Z oct by M/V cgg alize towing 8000 meter long cables in area bound by…
  6. HYDROLANT 1565/042004-09-25 → 2004-09-30
    Seismic survey in progress until 300259Z sep by M/V cgg alize towing 8000 meter long cables in area bound by…
  7. HYDROLANT 1546/042004-09-22 → 2004-09-25
    Seismic survey in progress until 250259Z sep by M/V cgg alize towing 8000 meter long cables in area bound by…
  8. HYDROLANT 1523/042004-09-18 → 2004-09-22
    Seismic survey in progress until 220300Z sep by M/V cgg alize towing 8000 meter long cables in area bound by…
  9. HYDROLANT 1430/042004-09-01 → 2004-11-06
    Seismic survey in progress until further notice by M/V discoverer towing 6000 meter long cable in area bound…
  10. HYDROLANT 1352/042004-08-15 → 2004-08-20
    Underwater operations in progress until further notice by cableship leon thevenin vicinity of trackline…
  11. HYDROLANT 1339/042004-08-11 → 2004-08-25
    Seismic survey in progress until further notice by M/V geo searcher towing two mile long cable within five…
  12. HYDROLANT 1258/042004-07-29 → 2004-08-10
    Cable operations 30 jul thru 09 aug by cableship ile de batz in area bound by 28-37.0N 018-37.7W, 28-36.4N…
  13. HYDROLANT 1218/042004-07-20 → 2004-07-29
    Cable operations 23 jul thru 02 aug by cableship ile de batz in area bound by 20-50.1N 019-18.9W, 20-48.8N…
  14. NAVAREA IV 226/042004-06-28 → 2004-09-25
    Seismic survey in progress until further notice by M/V veritas vantage towing eight 6000 meter long cables…
  15. HYDROLANT 968/042004-06-04 → 2004-07-08
    Underwater operations in progress until further notice by cableship atlantic guardian vicinity 59-55.6N…
  16. HYDROLANT 886/042004-05-23 → 2004-06-03
    Underwater operations in progress until further notice by cableship atlantic guardian vicinity 59-55.4N…
  17. NAVAREA IV 140/042004-04-26 → 2004-05-03
    Cable operations in progress until 02 may by cableship tyco responder within two miles of 25-05.81N 071-23.14W
  18. NAVAREA IV 95/042004-03-25 → 2004-03-30
    Submarine cable operations in progress until 29 mar by cableship tyco decisive vicinity 38-38N 063-26W
  19. HYDROLANT 478/042004-03-24 → 2004-05-13
    Seismic survey in progress until further notice by M/V polar princess towing 4500 meter long cable in area…
  20. NAVAREA IV 16/042004-01-16 → 2004-01-22
    Cable operations 17 thru 21 jan by M/V tyco decisive in 27-24.7N 079-57.8W
  21. HYDROLANT 2272/032003-12-05 → 2003-12-13
    Cable operations 051900Z dec until further notice by cableship leon thevenin along trackline between…
  22. HYDROLANT 2022/032003-10-28 → 2003-10-29
    Underwater operations 281100Z to 282300Z oct by cableship leon thevenin within two miles of 42-19N 009-39W
  23. HYDROLANT 1879/032003-10-04 → 2003-10-06
    Underwater operations in progress until 222359Z oct by cableship leon thevenin in 07-37.7N 032-28.9W
  24. NAVAREA IV 383/032003-09-16 → 2003-10-15
    Seismic survey in progress until further notice by M/V gsi admiral towing 8000 meter long cable in area…
  25. NAVAREA IV 331/032003-08-12 → 2003-09-12
    Seismic survey in progress until further notice by M/V akademik lazarev towing 9000 meter long cables in…
  26. NAVAREA IV 325/032003-08-06 → 2003-09-09
    Seismic survey in progress until further notice by M/V gsi admiral towing two 6500 meter long cables in area…
  27. NAVAREA IV 318/032003-08-02 → 2003-08-06
    Seismic survey in progress until further notice by M/V admiral towing two 6.5 mile long cables in area bound…
  28. NAVAREA IV 312/032003-07-30 → 2003-08-12
    Cable operations 04 thru 11 aug by cableship global link vicinity 41-36.1N 052-34.2W
  29. HYDROLANT 1171/032003-06-15 → 2003-06-21
    Cable operations 17 thru 20 jun by cableship ile de sein along trackline joining 32-47.0N 016-49.5W,…
  30. HYDROLANT 1107/032003-06-06 → 2003-06-12
    Cable operations in progress until 11 jun by cableship ile de sein along trackline joining 34-44.0N…
  31. HYDROLANT 1004/032003-05-22 → 2003-05-29
    Cable operations 241930Z thru 312359Z may by cableship leon thevenin within two miles of 39-02.9N 027-57.6W
  32. NAVAREA IV 151/032003-04-11 → 2003-06-14
    Seismic survey in progress until further notice by M/V veritas viking and M/V gulf provider towing 5100…
  33. HYDROLANT 750/032003-04-10 → 2003-05-06
    Seismic survey in progress until further notice by M/V geo prospector towing 1200 meter long cable in area…
  34. HYDROLANT 635/032003-03-25 → 2003-07-02
    Seismic survey in progress until 01 jul by M/V ramform explorer towing 5200 meter long cable in area bound…
  35. NAVAREA IV 105/032003-03-17 → 2003-04-01
    Seismic survey in progress until 31 mar by M/V falcon explorer towing 8400 meter long cable in area bound by…
  36. HYDROLANT 415/032003-02-23 → 2003-02-26
    Seismic survey in progress until 25 feb by M/V ramform viking towing ten 4600 meter long cables in area…
  37. HYDROLANT 400/032003-02-21 → 2003-02-23
    Seismic survey in progress until 23 feb by M/V ramform viking towing ten 4600 meter long cables in area…
  38. HYDROLANT 375/032003-02-18 → 2003-02-21
    Seismic survey in progress until 20 feb by M/V ramform viking towing ten 4600 meter long cables in area…
  39. HYDROLANT 365/032003-02-16 → 2003-02-18
    Seismic survey in progress until 17 feb by M/V ramform viking towing ten 4600 meter long cables in area…
  40. HYDROLANT 336/032003-02-12 → 2003-02-15
    Seismic survey in progress until 14 feb by M/V ramform viking towing ten 4600 meter long cables in area…
  41. HYDROLANT 310/032003-02-09 → 2003-02-12
    Seismic survey in progress until 11 feb by M/V ramform viking towing ten 4600 meter long cables in area…
  42. HYDROLANT 279/032003-02-06 → 2003-02-09
    Seismic survey in progress until 08 feb by M/V ramform viking towing ten 4600 meter long cables in area…
  43. HYDROLANT 251/032003-02-03 → 2003-02-06
    Seismic survey in progress until 05 feb by M/V ramform viking towing ten 4600 meter long cables in area…
  44. HYDROLANT 223/032003-01-31 → 2003-02-03
    Seismic survey in progress until 02 feb by M/V ramform viking towing ten 4600 meter long cables in area…
  45. HYDROLANT 211/032003-01-29 → 2003-02-02
    Underwater cable operations 292100Z jan until further notice by cableship leon thevenin vicinity of…
  46. HYDROLANT 188/032003-01-27 → 2003-01-31
    Seismic survey in progress until 30 jan by M/V ramform viking towing ten 4600 meter long cables in area…
  47. HYDROLANT 161/032003-01-24 → 2003-01-27
    Seismic survey in progress until 26 jan by M/V ramform viking towing ten 4600 meter long cables in area…
  48. HYDROLANT 144/032003-01-21 → 2003-01-24
    Seismic survey in progress until 23 jan by M/V ramform viking towing ten 4600 meter long cables in area…
  49. HYDROLANT 118/032003-01-17 → 2003-01-21
    Seismic survey in progress until 20 jan by M/V ramform viking towing ten 4600 meter long cables in area…
  50. HYDROLANT 97/032003-01-14 → 2003-01-17
    Seismic survey in progress until 16 jan by M/V ramform viking towing ten 4600 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 24 · seahazards