Survey operations in 2026

Hydrographic and scientific survey vessels, often towing long arrays.

issued in 2026
95
still in force
73
vs 2025
+1257%
first · last
01-27 · 08-20

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 this year is under-counted.

By month

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

By NAVAREA series

  • HYDROLANT34
  • HYDROPAC20
  • NAVAREA IV18
  • AUSCOAST12
  • NAVAREA III8
  • HYDROARC2
  • NAVAREA X1

Where · top seas

South Atlantic Ocean2935%
North Atlantic Ocean1417%
Indian Ocean1215%
Black Sea810%
Timor Sea45%
Coral Sea45%
North Sea34%
Sea of Okhotsk34%
Persian Gulf34%
Caribbean Sea22%

All survey operations issued in 2026 · 95

  1. HYDROPAC 2171/26in force2026-07-29
    Survey operations are underway by vessel Investigator in the Coral Sea near Australia until further notice, with a one-mile berth requested.
    Coral Sea · Australia
  2. AUSCOAST 257/262026-07-29 → 2026-08-19
    Vessel Investigator is conducting a scientific survey towing equipment in an area bounded by coordinates from 21-52S 150-47E to 24-22S 152-51E; 1 nautical mile clearance requested.
  3. HYDROPAC 2168/26in force2026-07-28
    Survey operations are underway in the Coral Sea near Vanuatu by the vessel PMG Emerald, requesting a three-mile berth, until further notice.
    Coral Sea · South Pacific · Vanuatu
  4. NAVAREA X 87/26in force2026-07-28
    Survey vessel PMG Emerald is conducting operations in an area bounded by 15-26.25 S to 20-57.00 S and 167-08.20 E to 169-17.00 E, requesting 2.5 nautical miles clearance.
  5. NAVAREA III 114/262026-07-28 → 2026-08-18
    Drilling operations by the Abdulhamid Han are underway in the Black Sea until 202059 UTC August 26, with a 10 nautical mile berth requested.
    Black Sea
  6. HYDROPAC 2157/262026-07-27 → 2026-08-19
    Underwater operations are underway by the vessel Fugro Kwilena in the eastern Indian Ocean off Australia until further notice. A two-mile berth is requested.
    Eastern Indian Ocean · Australia
  7. AUSCOAST 255/262026-07-27 → 2026-08-19
    Vessel Fugro Kwilena is conducting underwater operations in an area bounded by 19-56.69 S to 20-26.06 S and 114-45.09 E to 115-30.10 E, requesting 1.5 nautical miles clearance.
  8. HYDROLANT 1445/26in force2026-07-27
    Underwater operations by vessel UMI Polaris in the South Atlantic off Brazil from 28 July to 19 August, wide berth requested.
    South Atlantic · Brazil
  9. HYDROPAC 2124/26in force2026-07-24
    Submersible survey operations are in areas near 22-40N 154-30E and 22-30N 153-45E in the North Pacific from July 25 to August 15; wide berth requested.
    North Pacific
  10. 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
  11. 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
  12. HYDROPAC 2027/26in force2026-07-15
    Survey operations by the vessel Trimurti are ongoing in the Arabian Sea off India from 15 July to 14 August; wide berth requested.
    Arabian Sea · India
  13. HYDROPAC 2014/26in force2026-07-14
    Survey operations by vessel Nikolay Trubyatchinskiy in Sea of Okhotsk near Kuril Islands from 15 July to 15 October, requesting 400 meter berth.
    Sea of Okhotsk · Kuril Islands
  14. HYDROPAC 2011/26in force2026-07-14
    Survey operations by vessel Shark 1 are in progress in the Timor Sea until further notice, with a two-mile berth requested.
    Timor Sea
  15. AUSCOAST 243/26in force2026-07-14
    Survey vessel Shark 1 is conducting hydrographic survey between 11-30 S and 12-22 S, 125-05 E and 126-01 E, and 2 nautical miles clearance is requested.
  16. HYDROARC 126/26in force2026-07-10
    In Kara Sea, Russia, survey operations by vessel Akvamarin towing 1000-meter cable from July 14 2026 until further notice; two-mile berth requested.
    Kara Sea · Russia
  17. NAVAREA III 105/26in force2026-07-06
    Drilling operations by the Fatih platform with supporting vessels are ongoing in the Black Sea from 6 July to 24 September 2026.
    Black Sea
  18. HYDROLANT 1297/26in force2026-07-03
    Survey operations are in progress by vessel Ramform Atlas towing long cables in the North Sea off Norway; a three-mile berth is requested.
    North Sea · Norway
  19. HYDROLANT 1294/26in force2026-07-03
    Survey operations are underway by vessel Ramform Victory towing 12 cables three miles long in the South Atlantic off Angola; a five-mile berth is requested.
    South Atlantic · Angola
  20. NAVAREA III 102/26in force2026-06-26
    Drilling operations by Yavuz platform supported by several vessels are underway in the Black Sea from 27 June 2026 to 10 September 2026.
    Black Sea
  21. NAVAREA IV 621/26in force2026-06-24
    Underwater operations by vessel Prinsengracht continue in Guyana until 31 Dec; wide berth requested.
    North Atlantic · Guyana
  22. 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
  23. 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
  24. HYDROPAC 1768/26in force2026-06-18
    Survey operations by vessel Ordovik towing a 9,000-meter cable continue in the Bering Sea off Russia until 15 September, requesting a five-mile berth.
    Bering Sea · Russia
  25. HYDROLANT 1160/26in force2026-06-17
    Underwater operations by vessel Fugro Vaquita are in progress until 140001Z November, with wide berth requested; cancels HYDROLANT 1157/26.
  26. NAVAREA IV 587/26in force2026-06-15
    Survey operations by vessels Island Pride, Sanco Swift, and Olympic Artemis are underway until September 15 in the Gulf of America; wide berth requested.
    Gulf of America
  27. 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
  28. NAVAREA III 93/262026-06-15 → 2026-08-18
    Drilling operations by the Kanuni platform are underway in the Black Sea from 16 Jun 26 to 30 Aug 26 within a defined area.
    Black Sea
  29. 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.
  30. 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.
  31. 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
  32. 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
  33. NAVAREA III 86/26in force2026-06-03
    In the Adriatic Sea, the Key Manhattan rig is drilling at 44-05.12N 013-45.27E from June 3 to November 20, 2026; wide berth requested.
    Adriatic Sea
  34. AUSCOAST 202/26in force2026-05-28
    Twenty-one yellow light buoys with scientific equipment are deployed in an area bounded by 09-51S to 10-36S and 129-58E to 128-43E; mariners should navigate with caution.
  35. HYDROLANT 1021/26in force2026-05-27
    Survey operations continue until August 31, 2200 UTC in the South Atlantic off Brazil; wide berth requested.
    South Atlantic · Brazil
  36. 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
  37. HYDROPAC 1516/26in force2026-05-22
    Underwater operations are active in the Sea of Okhotsk, Russia, from 25 May through 31 December; wide berth requested.
    Sea of Okhotsk · Russia
  38. HYDROLANT 985/26in force2026-05-21
    Underwater operations by vessel Fugro Vaquita continue until August 31st in the South Atlantic off Brazil, wide berth requested.
    South Atlantic · Brazil
  39. HYDROPAC 1291/26in force2026-04-23
    Underwater operations in the Sea of Okhotsk, Russia, run from 1 May to 31 October; wide berth requested.
    Sea of Okhotsk · Russia
  40. HYDROPAC 957/26in force2026-03-29
    Underwater operations are in progress by vessel Safe Boreas in the eastern Indian Ocean off Australia, within 12-54.90S 124-25.10E to 12-59.90S 124-35.10E.
    Eastern Indian Ocean · Australia
  41. AUSCOAST 120/26in force2026-03-29
    Special purpose vessel Safe Boreas is supporting underwater operations in a bounded area; 2.5 nautical mile clearance requested.
  42. HYDROLANT 397/26in force2026-02-27
    A yellow scientific buoy flashing every 20 seconds is established at 27-24.38S 047-15.92W off Brazil until 25 August.
    South Atlantic · Brazil
  43. 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
  44. HYDROPAC 292/26in force2026-01-30
    Survey operations by vessel Halul 41 are in progress in the Persian Gulf near Qatar until further notice; wide berth requested.
    Persian Gulf · Qatar
  45. HYDROPAC 241/26in force2026-01-27
    A survey vessel in Makassar Strait, Indonesia, is towing twelve 10,050-meter cables until further notice; wide berth requested.
    Makassar Strait · Indonesia

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 2026 — page 2 · seahazards