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 229/002000-01-22 → 2000-01-25
    Seismic survey in progress until 24 jan by M/V northerm access towing 8000 meter long cable in area bound by…
  2. HYDROLANT 228/002000-01-22 → 2000-01-25
    Seismic survey in progress until 24 jan by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  3. HYDROLANT 227/002000-01-22 → 2000-01-25
    Seismic survey in progress until 24 jan by M/V geco diamond towing eight 6000 meter long cables in area…
  4. HYDROLANT 203/002000-01-19 → 2000-02-01
    Seismic survey 20 thru 31 jan by M/V western atlas towing 5000 meter long cable in area bound by 16-40S…
  5. HYDROLANT 202/002000-01-19 → 2000-01-22
    Seismic survey in progress until 21 jan by M/V geco marlin towing 8000 meter long cable in area bound by…
  6. HYDROLANT 197/002000-01-18 → 2000-01-22
    Seismic survey in progress until 21 jan by M/V falcon explorer towing 4500 meter long cable in area bound by…
  7. HYDROLANT 196/002000-01-18 → 2000-01-27
    Seismic survey 19 thru 26 jan by M/V akademik nikolaj strakhov towing 1500 meter long cable in area bound by…
  8. HYDROLANT 193/002000-01-18 → 2000-01-22
    Seismic survey in progress until 21 jan by M/V akademik shatskiy towing 8400 meter long cable in area bound…
  9. HYDROLANT 192/002000-01-18 → 2000-01-22
    Seismic survey in progress until 21 jan by M/V geco diamond towing eight 6000 meter long cables in area…
  10. HYDROLANT 191/002000-01-18 → 2000-01-22
    Seismic survey in progress until 21 jan by M/V northern access towing 5000 meter long cable in area bound by…
  11. HYDROLANT 190/002000-01-18 → 2000-01-22
    Seismic survey in progress until 21 jan by M/V ramform viking towing 4500 meter long cable in area bound by…
  12. HYDROLANT 189/002000-01-18 → 2000-01-20
    Seismic survey in progress until 21 jan by M/V kenda towing 7408 meter long cable in area bound by 25-12S…
  13. HYDROLANT 186/002000-01-18 → 2000-01-19
    Seismic survey in progress until 21 jan by M/V geco marlin towing 8000 meter long cable in area bound by…
  14. HYDROLANT 184/002000-01-18 → 2000-01-20
    Seismic survey in progress until 21 jan by M/V geo arctic towing 16688 meter long cable in area bound by…
  15. HYDROLANT 146/002000-01-15 → 2000-01-18
    Seismic survey in progress until 17 jan by M/V geco marlin towing 9260 meter long cable in area bound by…
  16. HYDROLANT 145/002000-01-15 → 2000-01-18
    Seismic survey in progress until 17 jan by M/V geco eagle towing 14816 meter long cable in area bound by…
  17. HYDROLANT 144/002000-01-15 → 2000-01-18
    Seismic survey in progress until 17 jan by M/V geco diamond towing 6000 meter long cable in area bound by…
  18. HYDROLANT 143/002000-01-15 → 2000-01-28
    Seismic survey in progress until 28 jan by M/V geco tau towing 4630 meter long cable in area bound by 10-45S…
  19. HYDROLANT 141/002000-01-14 → 2000-01-18
    Seismic survey in progress until 17 jan by M/V ramform vanguard towing 4500 meter long cable along trackline…
  20. HYDROLANT 130/002000-01-14 → 2000-01-18
    Seismic survey in progress until 17 jan by M/V ramform victory towing 6500 meter long cable in area bound by…
  21. HYDROLANT 128/002000-01-14 → 2000-01-18
    Seismic survey in progress until 17 jan by M/V akademik shatskiy towing 10200 meter long cable in area bound…
  22. HYDROLANT 121/002000-01-13 → 2000-01-15
    Seismic survey in progress until 14 jan by M/V geo arctic towing 16700 meter long cable in area bound by…
  23. HYDROLANT 120/002000-01-13 → 2000-01-19
    Seismic survey in progress until 18 jan by M/V akademik nikolaj strakhov towing 1500 meter long cable in…
  24. HYDROLANT 119/002000-01-13 → 2000-01-15
    Seismic survey 14 thru 21 jan by M/V geco tau towing 4630 meter long cables in area bound by 10-45S 036-47W,…
  25. HYDROLANT 118/002000-01-13 → 2000-01-20
    Seismic survey 14 thru 19 jan by M/V nan hai 502 towing 7500 meter long cable in area bound by 20-46S…
  26. HYDROLANT 99/002000-01-11 → 2000-01-18
    Seismic survey in progress until 18 jan by M/V northern access towing 5000 meter long cable in area bound by…
  27. HYDROLANT 98/002000-01-11 → 2000-01-15
    Seismic survey 12 thru 17 jan by M/V cgg alize towing 5400 meter long cable along trackline joining 23-42S…
  28. HYDROLANT 83/002000-01-09 → 2000-01-18
    Seismic survey in progress until 17 jan by M/V kenda towing 7408 meter long cable in area bound by 25-12S…
  29. HYDROLANT 82/002000-01-09 → 2000-01-13
    Seismic survey in progress until 13 jan by M/V akademik nikolaj strakhov towing 1500 meter long cable in…
  30. HYDROLANT 81/002000-01-09 → 2000-01-14
    Seismic survey in progress until 13 jan by M/V geco diamond towing 6000 meter long cable in area bound by…
  31. HYDROLANT 80/002000-01-09 → 2000-01-13
    Seismic survey in progress until 14 jan by M/V geco tau towing four 4630 meter long cables in area bound by…
  32. HYDROLANT 78/002000-01-09 → 2000-01-13
    Seismic survey in progress until 15 jan by M/V geo arctic towing 16668 meter long cable in area bound by…
  33. HYDROLANT 77/002000-01-09 → 2000-01-14
    Seismic survey in progress until 13 jan by M/V akademik shatskiy towing 10186 meter long cable in area bound…
  34. HYDROLANT 76/002000-01-09 → 2000-01-14
    Seismic survey in progress until 13 jan by M/V geco eagle towing 14816 meter long cable in area bound by…
  35. HYDROLANT 60/002000-01-07 → 2000-01-11
    Seismic survey in progress until 10 jan by M/V falcon explorer towing 300 meter long cable in area bound by…
  36. HYDROLANT 48/002000-01-05 → 2000-01-07
    Seismic survey in progress until 10 jan by M/V kenda towing 7400 meter long cable in area bound by 27-06S…
  37. HYDROLANT 47/002000-01-05 → 2000-01-10
    Seismic survey in progress until 09 jan by M/V akademik nikolaj strakhov towing 1500 meter long cable in…
  38. HYDROLANT 46/002000-01-05 → 2000-01-09
    Seismic survey in progress until 10 jan by M/V geco diamond towing 6000 meter long cable in area bound by…
  39. HYDROLANT 44/002000-01-05 → 2000-01-11
    Seismic survey in progress until 12 jan by M/V cgg alize towing 5400 meter long cable along trackline…
  40. HYDROLANT 43/002000-01-05 → 2000-01-08
    Seismic survey in progress until 07 jan by M/V geco tau towing 8340 meter long cable in area bound by 13-13S…
  41. HYDROLANT 15/002000-01-02 → 2000-01-05
    Seismic survey in progress until 10 jan by M/V geco diamond towing 6000 meter long cable in area bound by…
  42. HYDROLANT 14/002000-01-02 → 2000-01-05
    Seismic survey in progress until 05 jan by M/V akademik nikolaj strakhov towing 1500 meter long cable along…
  43. HYDROLANT 8/002000-01-01 → 2000-01-09
    Seismic survey 02 thru 10 jan by M/V geo arctic towing 16668 meter long cable in area bound by 24-14S…
  44. HYDROLANT 7/002000-01-01 → 2000-01-07
    Seismic survey 02 thru 10 jan by M/V northern access towing 5000 meter long cable within 50 miles of 26-49S…
  45. HYDROLANT 5/002000-01-01 → 2000-01-11
    Seismic survey 02 thru 10 jan by M/V ramform viking towing 4500 meter long cable in area bound by 22-20S…
  46. HYDROLANT 4/002000-01-01 → 2000-01-09
    Seismic survey 02 thru 10 jan by M/V akademik shatskiy towing 10186 meter long cable in area bound by 23-38S…
  47. HYDROLANT 3/002000-01-01 → 2000-01-11
    Seismic survey 02 thru 10 jan by M/V ramform vanguard towing 4500 meter long cable in area bound by 23-52S…
  48. HYDROLANT 2/002000-01-01 → 2000-01-03
    Seismic survey in progress thru 02 jan by M/V akademik nicolaj strakhov towing 1500 meter long cable in area…
  49. HYDROLANT 1/002000-01-01 → 2000-01-09
    Seismic survey 02 thru 10 jan by M/V geco eagle towing 14816 meter long cable in area bound by 21-11S…
  50. HYDROLANT 2824/991999-12-27 → 2000-07-28
    Seismic survey in progress until further notice by M/V western cove towing 4500 meter long cable along…

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 102 · seahazards