Cable & pipeline work in the South Atlantic Ocean

Cable laying, pipeline and seismic operations.

in force
2
last 12 months
3
vs previous 12 (2)
+50%
since 1998
5,172

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 · 2

  1. HYDROLANT 1497/26in force2026-08-04
    Survey operations by cableship Nautilus are in progress near Angola until 22 August; wide berth requested.
    South Atlantic · Angola
  2. NAVAREA II 269/26in force2026-07-02
    Seismic survey by vessel Ramform Victory is in progress off Pointe Noire until further notice; wide berth requested.
    Pointe Noire

Longest in force

  1. NAVAREA II 269/26in force2026-07-02 · 52 d
    Seismic survey by vessel Ramform Victory is in progress off Pointe Noire until further notice; wide berth requested.
    Pointe Noire
  2. HYDROLANT 1497/26in force2026-08-04 · 19 d
    Survey operations by cableship Nautilus are in progress near Angola until 22 August; wide berth requested.
    South Atlantic · Angola

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
25
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

Other hazards in the South Atlantic Ocean

Archive · 5,170 cancelled

  1. HYDROLANT 2837/002000-08-13 → 2000-08-16
    Seismic survey in progress until 15 aug by M/V ramform explorer towing eight 6500 meter long cables in area…
  2. HYDROLANT 2830/002000-08-13 → 2000-08-17
    Seismic survey in progress until 16 aug by M/V new venture towing 8334 meter long cable in area bound by…
  3. HYDROLANT 2818/002000-08-12 → 2000-08-14
    Seismic survey in progress until 13 aug by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  4. HYDROLANT 2816/002000-08-12 → 2000-08-15
    Seismic survey in progress until 14 aug by M/V northern access towing 8704 meter long cable in area bound by…
  5. HYDROLANT 2815/002000-08-12 → 2000-08-14
    Seismic survey in progress until 13 aug by M/V polar search towing four 6482 meter long cables in area bound…
  6. HYDROLANT 2802/002000-08-11 → 2000-08-14
    Seismic survey in progress until 140300Z aug by M/V geco tau towing 11000 meter long cable in area bound by…
  7. HYDROLANT 2793/002000-08-10 → 2000-08-12
    Seismic survey in progress until 11 aug by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  8. HYDROLANT 2787/002000-08-09 → 2000-08-16
    Seismic survey in progress until 15 aug by M/V western regent and M/V kenda towing eight 4000 meter long…
  9. HYDROLANT 2776/002000-08-09 → 2000-08-15
    Seismic survey in progress until 14 aug by M/V western atlas and M/V western patriot towing seven 3000 meter…
  10. HYDROLANT 2775/002000-08-09 → 2000-08-12
    Seismic survey in progress until 11 aug by M/V northern access towing 8704 meter long cable in area bound by…
  11. HYDROLANT 2774/002000-08-09 → 2000-08-12
    Seismic survey in progress until 11 aug by M/V polar search towing four 6482 meter long cables in area bound…
  12. HYDROLANT 2772/002000-08-09 → 2000-08-14
    Seismic survey 10 thru 13 aug by M/V new venture towing 8334 meter long cable in area bound by 11-00S…
  13. HYDROLANT 2763/002000-08-08 → 2000-08-30
    Cable laying operations in progress until further notice by cableship agile vicinity 35-48.8S 052-11.8W
  14. HYDROLANT 2758/002000-08-08 → 2000-08-11
    Seismic survey 081100Z to 120300Z aug by M/V geco tau towing 11000 meter long cable in area bound by 02-30S…
  15. HYDROLANT 2756/002000-08-08 → 2000-08-13
    Seismic survey in progress until 12 aug by M/V ramform explorer towing eight 6500 meter long cables in area…
  16. HYDROLANT 2749/002000-08-07 → 2000-08-10
    Seismic survey in progress until 09 aug by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  17. HYDROLANT 2741/002000-08-06 → 2000-08-09
    Seismic survey in progress until 08 aug by M/V polar search towing four 6482 meter long cables in area bound…
  18. HYDROLANT 2738/002000-08-06 → 2000-08-10
    Seismic survey in progress until 09 aug by M/V new venture towing 8334 meter long cable in area bound by…
  19. HYDROLANT 2734/002000-08-05 → 2000-08-09
    Seismic survey in progress until 10 aug by M/V western atlas and M/V western patriot towing seven 3000 meter…
  20. HYDROLANT 2733/002000-08-05 → 2000-08-09
    Seismic survey in progress until 10 aug by M/V western regent and M/V kenda towing eight 4000 meter long…
  21. HYDROLANT 2730/002000-08-05 → 2000-08-08
    Seismic survey in progress until 09 aug by M/V ramform explorer towing eight 6500 meter long cables in area…
  22. HYDROLANT 2724/002000-08-04 → 2000-08-05
    Seismic survey in progress until 06 aug by M/V ramform explorer towing eight 6500 meter long cables in area…
  23. HYDROLANT 2711/002000-08-03 → 2000-08-07
    Seismic survey in progress until 06 aug by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  24. HYDROLANT 2710/002000-08-03 → 2000-08-06
    Seismic survey in progress until 05 aug by M/V polar search towing four 6482 meter long cables in area bound…
  25. HYDROLANT 2695/002000-08-02 → 2000-08-06
    Seismic survey in progress until 05 aug by M/V new venture towing 8334 meter long cable in area bound by…
  26. HYDROLANT 2694/002000-08-02 → 2000-08-05
    Seismic survey in progress until 04 aug by M/V northern access towing 8704 meter long cable in area bound by…
  27. HYDROLANT 2682/002000-08-01 → 2000-08-02
    Seismic survey in progress until 020300Z aug by M/V geco tau towing 11000 meter long cable in area bound by…
  28. HYDROLANT 2681/002000-08-01 → 2000-08-03
    Cable laying operations in progress until 030001Z aug by M/V teliri along trackline between 17-21S 034-41W…
  29. HYDROLANT 2680/002000-08-01 → 2000-08-04
    Seismic survey in progress until 03 aug by M/V ramform explorer towing eight 6500 meter long cables in area…
  30. HYDROLANT 2671/002000-07-31 → 2000-08-02
    Seismic survey in progress until 01 aug by M/V northern access towing 8704 meter long cable in area bound by…
  31. HYDROLANT 2669/002000-07-31 → 2000-08-03
    Seismic survey in progress until 02 aug by M/V polar search towing four 6482 meter long cables in area bound…
  32. HYDROLANT 2668/002000-07-31 → 2000-08-03
    Seismic survey in progress until 02 aug by M/V ramform victory, M/V sanco sea, and M/V falcon explorer…
  33. HYDROLANT 2666/002000-07-31 → 2000-08-05
    Seismic survey in progress until 04 aug by M/V western atlas and M/V western patriot towing seven 3000 meter…
  34. HYDROLANT 2661/002000-07-30 → 2000-07-31
    Seismic survey in progress until 30 jul by M/V polar search towing four 6482 meter long cables in area bound…
  35. HYDROLANT 2660/002000-07-30 → 2000-08-05
    Seismic survey in progress until 05 aug by M/V western regent and M/V kenda towing eight 4000 meter long…
  36. HYDROLANT 2658/002000-07-29 → 2000-08-02
    Seismic survey in progress until 01 aug by M/V new venture towing 8500 meter long cable in area bound by…
  37. HYDROLANT 2654/002000-07-29 → 2000-07-29
    Seismic survey in progress until 04 aug by M/V new venture towing 8500 meter long cable in area bound by…
  38. HYDROLANT 2653/002000-07-29 → 2000-07-31
    Seismic survey in progress until 30 jul by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  39. HYDROLANT 2647/002000-07-28 → 2000-07-31
    Seismic survey in progress until 30 jul by M/V northern access towing 8704 meter long cable in area bound by…
  40. HYDROLANT 2646/002000-07-28 → 2000-08-01
    Seismic survey in progress until 31 jul by M/V ramform explorer towing eight 6500 meter long cables in area…
  41. HYDROLANT 2645/002000-07-28 → 2000-07-30
    Seismic survey in progress until 29 jul by M/V new venture towing 8500 meter long cable in area bound by…
  42. HYDROLANT 2635/002000-07-27 → 2000-07-31
    Cable laying operations in progress until 311500Z jul by M/V teliri along trackline joining 13-40S 034-13W,…
  43. HYDROLANT 2634/002000-07-27 → 2000-07-30
    Seismic survey in progress until 29 jul by M/V polar search towing four 6482 meter long cables in area bound…
  44. HYDROLANT 2632/002000-07-27 → 2000-07-28
    Seismic survey in progress until 27 jul by M/V northern access towing 8704 meter long cable in area bound by…
  45. HYDROLANT 2628/002000-07-26 → 2000-08-01
    Seismic survey in progress until 31 jul by M/V geco tau towing 11000 meter long cable in area bound by…
  46. HYDROLANT 2622/002000-07-26 → 2000-07-31
    Seismic survey in progress until 30 jul by M/V western atlas and M/V western patriot towing seven 3000 meter…
  47. HYDROLANT 2614/002000-07-25 → 2000-07-30
    Seismic survey in progress until 30 jul by M/V western regent and M/V kenda towing eight 4000 meter long…
  48. HYDROLANT 2612/002000-07-25 → 2000-07-29
    Seismic survey in progress until 28 jul by M/V mezen towing 8000 meter long cable in area bound by 00-27N…
  49. HYDROLANT 2610/002000-07-25 → 2000-07-28
    Seismic survey in progress until 27 jul by M/V ramform victory, M/V sanco sea and M/V falcon explorer towing…
  50. HYDROLANT 2608/002000-07-24 → 2000-07-27
    Seismic survey in progress until 26 jul by M/V northern access towing 8704 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 South Atlantic Ocean — page 91 · seahazards