Survey operations in the North Atlantic Ocean

Hydrographic and scientific survey vessels, often towing long arrays.

in force
15
last 12 months
16
vs previous 12 (3)
+433%
since 1997
1,072

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 · 15

  1. NAVAREA IV 708/26in force2026-07-21
    Survey operations by vessel FUGRO DISCOVERY in North Atlantic off Virginia from July 23 to August 26, wide berth requested.
    North Atlantic · Virginia
  2. NAVAREA IV 705/26in force2026-07-20
    Survey operations are underway until 31 December near Guyana by vessel AHT DN87 and tug TELESTO; wide berth requested.
    North Atlantic · Guyana
  3. NAVAREA IV 621/26in force2026-06-24
    Underwater operations by vessel Prinsengracht continue in Guyana until 31 Dec; wide berth requested.
    North Atlantic · Guyana
  4. NAVAREA IV 616/26in force2026-06-23
    Survey operations by vessel Moonrise G continue in Guyana waters until November 15; wide berth requested.
    North Atlantic · Guyana
  5. NAVAREA IV 615/26in force2026-06-23
    Survey operations by vessel BGP Prospector continue in the North Atlantic near Guyana until November 15, with wide berth requested.
    North Atlantic · Guyana
  6. NAVAREA IV 586/26in force2026-06-15
    Underwater operations by vessel Normand Navigator continue until 31 Dec near Guyana, wide berth requested.
    North Atlantic · Guyana
  7. NAVAREA IV 552/26in force2026-06-09
    Survey operations are underway until 16 November by vessel SeaQuest in an area near 58°W 07°N, wide berth requested.
  8. NAVAREA IV 551/26in force2026-06-09
    Survey operations by vessel Sea Horse II are in progress until 16 November in an area near 07-57N 058-27W to 07-11N 057-33W, wide berth requested.
  9. NAVAREA IV 538/26in force2026-06-05
    Underwater operations by vessel Handin Tide continue until 25 August in the North Atlantic off Guyana, near 08-00N 057-00W; wide berth requested.
    North Atlantic · Guyana
  10. NAVAREA IV 539/26in force2026-06-05
    Underwater operations by vessel C-Worker 1 until 31 Dec in area from 07-54.85N 057-06.47W to 08-04.55N 056-50.16W, Guyana. Wide berth requested.
    North Atlantic · Guyana
  11. NAVAREA IV 496/26in force2026-05-26
    Underwater operations by vessel Normand Navigator continue near Suriname from June 1 to August 31, requesting one mile berth.
    North Atlantic · Suriname
  12. NAVAREA IV 98/26in force2026-02-03
    Survey operations by vessel Fugro Brasilis are ongoing until 31 December 2026 off Guyana; wide berth requested.
    North Atlantic · Guyana
  13. NAVAREA IV 1431/25in force2025-12-31
    Survey operations by vessel BOS PRINCESS continue until 31 Dec 2026 off Guyana; wide berth requested.
    North Atlantic · Guyana
  14. NAVAREA IV 1430/25in force2025-12-31
    Underwater operations by vessel Aldemir Souza Tide continue until 31 Dec 2026 in the North Atlantic; wide berth requested.
    North Atlantic
  15. NAVAREA IV 12/24in force2024-01-03
    Underwater operations are in progress by vessels Bourbon Calm and Bourbon Sapphire in the Western North Atlantic; wide berth requested.
    Western North Atlantic

Longest in force

  1. NAVAREA IV 12/24in force2024-01-03 · 961 d
    Underwater operations are in progress by vessels Bourbon Calm and Bourbon Sapphire in the Western North Atlantic; wide berth requested.
    Western North Atlantic
  2. NAVAREA IV 1430/25in force2025-12-31 · 233 d
    Underwater operations by vessel Aldemir Souza Tide continue until 31 Dec 2026 in the North Atlantic; wide berth requested.
    North Atlantic
  3. NAVAREA IV 1431/25in force2025-12-31 · 233 d
    Survey operations by vessel BOS PRINCESS continue until 31 Dec 2026 off Guyana; wide berth requested.
    North Atlantic · Guyana
  4. NAVAREA IV 98/26in force2026-02-03 · 199 d
    Survey operations by vessel Fugro Brasilis are ongoing until 31 December 2026 off Guyana; wide berth requested.
    North Atlantic · Guyana
  5. NAVAREA IV 496/26in force2026-05-26 · 88 d
    Underwater operations by vessel Normand Navigator continue near Suriname from June 1 to August 31, requesting one mile berth.
    North Atlantic · Suriname

By year

97
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 · 1,057 cancelled

  1. NAVAREA IV 891/222022-09-03 → 2022-11-21
    Underwater operations in progress until 31 dec by M/V tshd amerigo vespucci in area bound by 06-49.17N…
    Western North Atlantic
  2. NAVAREA IV 888/222022-09-02 → 2022-09-08
    Survey operations 02 thru 07 sep by M/V marwina in area bound by 06-10.40N 055-01.33W, 06-10.59N 055-28.62W,…
    Western North Atlantic · Suriname
  3. NAVAREA IV 865/222022-08-28 → 2022-10-09
    Survey operations 29 aug until further notice by M/V bgp prospector towing eight 7000 meter long cables in…
    Western North Atlantic · Guyana
  4. NAVAREA IV 858/222022-08-26 → 2022-09-12
    Trinidad and tobago
    Western North Atlantic
  5. NAVAREA IV 835/222022-08-19 → 2022-08-29
    Survey operations 23 thru 28 aug by MV marwina in area bound by 06-10.64N 055-18.36W, 05-58.40N 055-18.31W,…
    Western North Atlantic · Suriname
  6. NAVAREA IV 831/222022-08-19 → 2022-08-30
    Survey operations 24 thru 29 aug by M/V atlantic spirit in area bound by 07-24.81N 055-50.08W, 06-59.81N…
    Western North Atlantic · Suriname
  7. NAVAREA IV 796/222022-08-12 → 2023-01-12
    Underwater operations in progress until 31 dec by tug DN87 and barge K4512 in area bound by 06-49.17N…
    Western North Atlantic · Guyana
  8. NAVAREA IV 792/222022-08-11 → 2022-09-16
    Trinidad and tobago
    Western North Atlantic
  9. NAVAREA IV 756/222022-08-02 → 2023-01-01
    Underwater operations in progress until 31 dec by M/V jackie chouest in area bound by 08-15.96N 057-02.23W,…
    Western North Atlantic
  10. HYDROLANT 1776/222022-07-15 → 2022-07-22
    Survey operations in progress until 21 jul by M/V fugro voyager in vacinity 28-37.60N 012-32.00W
    Eastern North Atlantic · Morocco
  11. NAVAREA IV 679/222022-07-13 → 2022-08-20
    Survey operations in progress until 31 aug by M/V geo service 1, M/V national energy explorer, and M/V bcp…
    Western North Atlantic · Guyana
  12. NAVAREA IV 668/222022-07-12 → 2023-01-01
    Underwater operations in progress until 31 dec by M/V pinta in area bound by 06-49.17N 058-12.00W, 06-50.92N…
    Western North Atlantic · Guyana
  13. HYDROLANT 1726/222022-07-08 → 2022-07-15
    Survey operations 112000Z to 171800Z jul by M/V sarmiento de gamboa towing 6000 meter long cable along…
    Eastern North Atlantic · Spain
  14. HYDROLANT 1705/222022-07-05 → 2022-07-11
    Survey operations 080001Z to 110600Z jul by M/V sarmiento de gamboa towing 6000 meter long cable along…
    Eastern North Atlantic · Spain
  15. NAVAREA IV 637/222022-07-04 → 2022-07-24
    Massachusetts to puerto rico
    Western North Atlantic
  16. NAVAREA IV 628/222022-07-03 → 2022-07-04
    Underwater operations by r/v atlantis 0400Z to 0359Z daily: a. 06 and 07 jul in area within five miles of…
    Western North Atlantic · United States
  17. NAVAREA IV 616/222022-07-01 → 2022-07-03
    Massachusetts to puerto rico
    Western North Atlantic
  18. HYDROLANT 1655/222022-06-30 → 2022-07-07
    Survey operations 011200Z to 070100Z jul by M/V sarmiento de gamboa towing 6000 meter long cable along…
    Eastern North Atlantic
  19. NAVAREA IV 599/222022-06-24 → 2022-07-10
    Survey operations in progress until further notice by M/V fugro supporter along tracklines joining: a.…
    Western North Atlantic · Virginia
  20. NAVAREA IV 592/222022-06-22 → 2023-01-01
    Underwater operations 23 jun thru 31 dec by M/V aht forte in area bound by 08-15.96N 057-02.23W, 08-15.96N…
    Western North Atlantic · Guyana
  21. NAVAREA IV 591/222022-06-22 → 2023-01-01
    Underwater operations 23 jun thru 31 dec by M/V aht lamnalco magpie in area bound by 08-11.04N 057-08.98W,…
    Western North Atlantic · Guyana
  22. HYDROLANT 1587/222022-06-21 → 2023-05-14
    Survey operations in progress until further notice by M/V sarmiento de gamboa towing 300 meter long cable…
    Eastern North Atlantic
  23. HYDROLANT 1535/222022-06-15 → 2022-06-21
    Survey operations in progress until further notice by M/V sarmiento de gamboa towing 300 meter long cable…
    Eastern North Atlantic
  24. HYDROLANT 1519/222022-06-13 → 2022-06-15
    Survey operations 150100Z to 190001 jun by M/V sarmiento de gamboa towing 300 meter long cable along…
    Eastern North Atlantic
  25. HYDROLANT 1503/222022-06-11 → 2022-06-30
    Survey operations 13 thru 29 jun by M/V sarmiento de gamboa towing 300 meter submerged equipment along…
    Eastern North Atlantic · Bay of Biscay · Spain
  26. NAVAREA IV 536/222022-06-05 → 2023-01-01
    Survey operations 06 jun thru 31 dec by M/V aht forte in area bound by 08-15.59N 057-02.23W, 08-15.59N…
    Western North Atlantic · Guyana
  27. HYDROLANT 1418/222022-05-30 → 2022-05-30
    Survey operations in progress until 090001Z jun by M/V sarmiento de gamboa towing 6000 meter long cable in…
    Eastern North Atlantic · Portugal
  28. HYDROLANT 1414/222022-05-29 → 2022-05-30
    Survey operations in progress until 092330Z jun by M/V gamboa/eakf towing 6000 meter long cable in area…
    Eastern North Atlantic · Portugal
  29. NAVAREA IV 476/222022-05-19 → 2022-10-09
    Survey operations until further notice by vessel M/V ramform titan towing 16 9500 meter long cables in area…
    Western North Atlantic
  30. HYDROLANT 1195/222022-05-02 → 2022-05-03
    Survey operations in progress until further notice by M/V veritas viking in area within ten miles of…
    Eastern North Atlantic · Shetland Islands
  31. NAVAREA IV 419/222022-05-01 → 2022-07-01
    Survey operations in progress until 30 jun by M/V bgp prospector towing ten 8000 meter long cables in area…
    Western North Atlantic · Suriname
  32. HYDROLANT 1129/222022-04-24 → 2022-05-07
    Survey operations in progress until 062359Z may by M/V hidden gem in vicinity of 28-34.0N 016-03.7W
    Eastern North Atlantic · Canary Islands
  33. HYDROLANT 1125/222022-04-22 → 2022-04-24
    Survey operations in progress until further notice by M/V hidden gen in vicinity of 30-49.8N 012-33.5W
    Eastern North Atlantic
  34. NAVAREA IV 384/222022-04-21 → 2022-08-20
    Survey operations in progress until 30 sept by M/V bgp prospector towing ten 8000 meter long cables in area…
    Western North Atlantic · Suriname
  35. NAVAREA IV 356/222022-04-12 → 2022-04-16
    Survey operations in progress until 15 apr by M/V thor freyja, M/V thor alpha, and M/V ramform tethys in…
    Western North Atlantic · Guyana
  36. NAVAREA IV 305/222022-03-28 → 2022-04-21
    Survey operations in progress until 31 jul by M/V bgp prospector towing ten 8000 meter long cables in area…
    Western North Atlantic · Suriname
  37. NAVAREA IV 232/222022-03-08 → 2022-03-17
    Survey operations 10 thru 16 mar by M/V marwina in area bound by 06-04.91N 055-12.30W, 06-12.19N 055-12.09W,…
    Western North Atlantic · Suriname
  38. HYDROLANT 666/222022-03-06 → 2022-04-01
    Survey operations in progress until 312359Z mar by M/V fugro supporter along trackline joining 45-43.9N…
    Eastern North Atlantic · Bay of Biscay · Spain
  39. HYDROLANT 619/222022-03-01 → 2022-03-08
    Survey operations in progress until 07 mar by M/V miguel oliver in 36-01N 006-30W
    Eastern North Atlantic · Spain
  40. NAVAREA IV 213/222022-02-28 → 2022-05-02
    Survey operations 01 mar thru 01 may by M/V island diligence in area bound by 08-06.74N 056-59.79W,…
    Western North Atlantic · Guyana
  41. NAVAREA IV 212/222022-02-28 → 2022-12-01
    Survey operations 01 mar thru 31 nov by M/V norman samson in area bound by 08-15.96N 057-02.23W, 08-15.96N…
    Western North Atlantic · Guyana
  42. NAVAREA IV 211/222022-02-28 → 2022-04-12
    Survey operations 01 mar thru 30 apr 22 by M/V thor freyja, M/V thor alpha, and M/V ramform tethys in area…
    Western North Atlantic · Guyana
  43. HYDROLANT 600/222022-02-28 → 2022-03-01
    Survey operations in progress until 011800 mar by M/V discovery in 27-51.05N 013-32.42W
    Eastern North Atlantic · Morocco
  44. HYDROLANT 529/222022-02-22 → 2022-03-25
    Survey operations in progress until 251200Z mar by M/V discovery along trackline joining 25-40.9N 019-21.7W,…
    Eastern North Atlantic · Canary Islands
  45. HYDROLANT 413/222022-02-10 → 2022-06-01
    Underwater operations in progress until 31 may in 16-04.31N 016-52.09W
    Eastern North Atlantic · Mauritania
  46. NAVAREA IV 140/222022-02-08 → 2022-03-02
    Survey operations in progress until 01 mar by M/V bgp prospector, M/V geo service 1 and M/V national energy…
    Western North Atlantic · Guyana
  47. NAVAREA IV 111/222022-02-01 → 2022-02-10
    Survey operations 07 feb thru 31 mar by M/V cape davis in area bound by 08-12.09N 056-49.35W, 08-05.88N…
    Western North Atlantic · Guyana
  48. NAVAREA IV 101/222022-01-30 → 2022-02-28
    Guyana 1. survey operations in progress until 30 apr by M/V thor alpha, M/V thor freyja and M/V ramform…
    Western North Atlantic
  49. NAVAREA IV 28/222022-01-12 → 2022-07-01
    Survey operations 15 jan thru 30 jun by M/V trinity VIII jessica in areas bound by: a. 07-01.3N 058-04.0W,…
    Western North Atlantic · Guyana
  50. HYDROLANT 94/222022-01-10 → 2022-01-17
    Survey operations 11 thru 16 jan by M/V beautemps beaupre in area bound by 48-00N 009-29W, 46-54N 009-29W,…
    Eastern North Atlantic · Celtic Sea

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.

Survey operations in the North Atlantic Ocean — page 4 · seahazards