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
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A
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O
N
D

Other hazards in the North Atlantic Ocean

Archive · 1,571 cancelled

  1. HYDROLANT 2232/002000-06-23 → 2000-06-27
    Seismic survey 24 thru 26 jun by M/V mezen towing 8000 meter long cable in area bound by 01-40N 046-36W,…
  2. HYDROLANT 2224/002000-06-22 → 2000-06-23
    Seismic survey in progress until 24 jun by M/V mezen towing 8000 meter long cable in area bound by 02-52N…
  3. HYDROLANT 2223/002000-06-22 → 2000-06-26
    Seismic survey in progress until 25 jun by M/V western inlet towing 6667 meter long cable in area bound by…
  4. HYDROLANT 2215/002000-06-21 → 2000-06-22
    Seismic survey in progress until 24 jun by M/V mezen towing 8000 meter long cable in area bound by 04-09N…
  5. HYDROLANT 2189/002000-06-19 → 2000-06-21
    Seismic survey in progress until 22 jun by M/V mezen towing 8000 meter long cable in area bound by 05-37N…
  6. HYDROLANT 2179/002000-06-18 → 2000-06-22
    Seismic survey in progress until 21 jun by M/V western inlet towing 6667 meter long cable in area bound by…
  7. HYDROLANT 2169/002000-06-16 → 2000-06-24
    Cable operations in progress until further notice by cableship bold endeavour vicinity of trackline between…
  8. HYDROLANT 2158/002000-06-16 → 2000-06-19
    Seismic survey in progress until 19 jun by M/V mezen towing 8000 meter long cable in area bound by 05-16N…
  9. HYDROLANT 2150/002000-06-15 → 2000-06-20
    Cable operations in progress until further notice by M/V tumcha vicinity of trackline between 60-00N 005-32W…
  10. HYDROLANT 2140/002000-06-15 → 2000-06-18
    Seismic survey in progress until 18 jun by M/V western inlet towing 6667 meter long cable in area bound by…
  11. HYDROLANT 2114/002000-06-12 → 2000-06-16
    Cable operations in progress until further notice by cableship bold endeavour vicinity of trackline between…
  12. HYDROLANT 2103/002000-06-12 → 2000-06-15
    Seismic survey in progress until 14 jun by M/V western inlet towing 6667 meter long cable in area bound by…
  13. HYDROLANT 2092/002000-06-10 → 2000-06-14
    Seismic survey in progress until 13 jun by M/V mezen towing 8000 meter long cable in area bound by 05-16N…
  14. HYDROLANT 2078/002000-06-09 → 2000-06-11
    Seismic survey in progress until 10 jun by M/V western inlet towing 6667 meter long cable in area bound by…
  15. HYDROLANT 2060/002000-06-07 → 2000-06-09
    Seismic survey in progress until 09 jun by M/V western inlet towing 6667 meter long cable in area bound by…
  16. HYDROLANT 2052/002000-06-07 → 2000-06-11
    Seismic survey in progress until 10 jun by M/V mezen towing 8000 meter long cable in area bound by 02-36N…
  17. NAVAREA IV 216/002000-06-07 → 2000-06-27
    Cable operations 10 jun until further notice by cableship fresnel vicinity of trackline joining 44-05.7N…
  18. HYDROLANT 2042/002000-06-06 → 2000-06-07
    Seismic survey in progress until 09 jun by M/V western inlet towing 6667 meter long cable in area bound by…
  19. HYDROLANT 2013/002000-06-04 → 2000-06-07
    Seismic survey in progress until 07 jun by M/V mezen towing 8000 meter long cable in area bound by 04-51N…
  20. HYDROLANT 1985/002000-06-02 → 2000-06-06
    Seismic survey in progress until 05 jun by M/V western inlet towing 6667 meter long cable in area bound by…
  21. HYDROLANT 1978/002000-06-01 → 2000-06-15
    Seismic survey in progress until 15 jun by M/V geolog dmitriy nalivkin towing 5000 meter long cable in area…
  22. HYDROLANT 1976/002000-06-01 → 2000-06-02
    Seismic survey in progress until 04 jun by M/V western inlet towing 6667 meter long cable in area bound by…
  23. HYDROLANT 1965/002000-05-31 → 2000-06-01
    Seismic survey in progress until 01 jun by M/V western inlet towing 6667 meter long cable in area bound by…
  24. HYDROLANT 1961/002000-05-31 → 2000-06-03
    Seismic survey in progress until 02 jun by M/V mezen towing 8000 meter long cable in area bound by 04-32N…
  25. HYDROLANT 1944/002000-05-30 → 2000-05-31
    Seismic survey in progress until 31 may by M/V western inlet towing 6667 meter long cable in area bound by…
  26. HYDROLANT 1930/002000-05-28 → 2000-05-30
    Seismic survey in progress until 31 may by M/V western inlet towing 6667 meter long cable in area bound by…
  27. HYDROLANT 1929/002000-05-28 → 2000-05-31
    Seismic survey in progress until 30 may by M/V mezen towing 8000 meter long cable in area bound by 04-32N…
  28. HYDROLANT 1912/002000-05-26 → 2000-05-28
    Seismic survey in progress until 27 may by M/V mezen towing 8000 meter long cable in area bound by 04-32N…
  29. HYDROLANT 1908/002000-05-26 → 2000-05-26
    Seismic survey in progress until 27 may by M/V western inlet towing 6667 meter long cable in area bound by…
  30. HYDROLANT 1890/002000-05-25 → 2000-05-26
    Seismic survey in progress until 28 may by M/V mezen towing 8000 meter long cable in area bound by 02-13N…
  31. HYDROLANT 1881/002000-05-24 → 2000-05-27
    Seismic survey in progress until 271500Z may by M/V hesperides in areas bound by: a. 36-20N 010-15W, 37-37N…
  32. HYDROLANT 1878/002000-05-24 → 2000-05-26
    Seismic survey in progress until 26 may by M/V western inlet towing 6667 meter long cable in area bound by…
  33. HYDROLANT 1843/002000-05-22 → 2000-05-25
    Seismic survey in progress until 25 may by M/V mezen towing 8000 meter long cable in area bound by 01-59N…
  34. HYDROLANT 1802/002000-05-19 → 2000-05-22
    Seismic survey in progress until 22 may by M/V mezen towing 8000 meter long cable in area bound by 02-15N…
  35. HYDROLANT 1767/002000-05-17 → 2000-05-19
    Seismic survey in progress until 19 may by M/V mezen towing 8000 meter long cable in area bound by 02-04N…
  36. HYDROLANT 1752/002000-05-16 → 2000-05-17
    Seismic survey in progress until 19 may by M/V mezen towing 8000 meter long cable in area bound by 03-15N…
  37. HYDROLANT 1722/002000-05-14 → 2000-05-16
    Seismic survey in progress until 16 may by M/V mezen towing 8000 meter long cable in area bound by 01-48N…
  38. HYDROLANT 1663/002000-05-10 → 2000-05-13
    Seismic survey in progress until 12 may by M/V mezen towing 8000 meter long cable in area bound by 00-04S…
  39. HYDROLANT 1635/002000-05-09 → 2000-05-10
    Seismic survey in progress until 12 may by M/V mezen towing 8000 meter long cable in area bound by 00-04S…
  40. HYDROLANT 1595/002000-05-06 → 2000-05-09
    Seismic survey in progress until 09 may by M/V mezen towing 8000 meter long cable in area bound by 01-32N…
  41. HYDROLANT 1544/002000-05-01 → 2000-05-03
    Seismic survey in progress until 02 may by M/V mezen towing 8000 meter long cable in area bound by 00-51N…
  42. HYDROLANT 1485/002000-04-27 → 2000-05-02
    Seismic survey in progress until 01 may by M/V western inlet towing 6667 meter long cable in area bound by…
  43. HYDROLANT 1483/002000-04-27 → 2000-04-29
    Seismic survey in progress until 29 apr by M/V mezen towing 8000 meter long cable in area bound by 00-35N…
  44. HYDROLANT 1470/002000-04-26 → 2000-04-27
    Seismic survey in progress until 28 apr by M/V western inlet towing 6667 meter long cable in area bound by…
  45. HYDROLANT 1438/002000-04-24 → 2000-04-27
    Seismic survey in progress until 26 apr by M/V mezen towing 8000 meter long cable in area bound by 00-35N…
  46. HYDROLANT 1406/002000-04-21 → 2000-04-24
    Seismic survey in progress until 23 apr by M/V mezen towing 8000 meter long cable in area bound by 01-37N…
  47. HYDROLANT 1373/002000-04-18 → 2000-04-21
    Seismic survey in progress until 20 apr by M/V mezen towing 8000 meter long cable in area bound by 01-37N…
  48. HYDROLANT 1326/002000-04-15 → 2000-04-18
    Seismic survey in progress until 17 apr by M/V mezen towing 7408 meter long cable in area bound by 02-24N…
  49. HYDROLANT 1310/002000-04-14 → 2000-04-17
    Seismic survey in progress until 16 apr by M/V western monarch towing eight 5556 meter long cables in area…
  50. HYDROLANT 1288/002000-04-12 → 2000-04-15
    Seismic survey in progress until 14 apr by M/V mezen towing 7408 meter long cable in area bound by 00-18S…

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 29 · seahazards