Survey operations in the Indian Ocean

Hydrographic and scientific survey vessels, often towing long arrays.

in force
9
last 12 months
26
vs previous 12 (19)
+37%
since 2000
412

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 · 9

  1. AUSCOAST 279/26in force2026-08-19
    Special purpose vessel Fugro Kwilena is conducting underwater operations in area from 19-47.68S 115-12.91E to 19-57.87S 115-25.37E, requesting 1.5 nautical mile clearance.
  2. AUSCOAST 275/26in force2026-08-16
    Drill rig Transocean Endurance is at position 19-31.18S 116-06.65E, requesting 2.5 nautical miles clearance.
  3. HYDROPAC 2288/26in force2026-08-10
    Underwater operations are in progress by vessel VE Constructor in an area off Australia, bounded by 19-12S to 19-21S and 116-30E to 116-50E, requesting one mile berth.
    Indian Ocean · Australia
  4. AUSCOAST 270/26in force2026-08-10
    Special purpose vessel VE Constructor conducting underwater operations in area bounded by 19-12S to 19-21S and 116-30E to 116-50E, 0.5 nautical miles clearance requested.
  5. AUSCOAST 267/26in force2026-08-05
    Drill rig JANSZ is at position 19-52.73S 114-36.50E, requesting a 2.5 nautical mile clearance.
  6. HYDROPAC 2203/26in force2026-08-01
    Underwater operations by the vessel Bhagwan Dryden at 20-06.96S 116-26.11E in the Eastern Indian Ocean, Australia, request a three-mile berth.
    Eastern Indian Ocean · Australia
  7. AUSCOAST 260/26in force2026-08-01
    Special purpose vessel Bhagwan Dryden is conducting underwater operations at position 20-06.96S 116-26.11E, requesting 2.5 nautical miles clearance.
  8. 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
  9. 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.

Longest in force

  1. AUSCOAST 120/26in force2026-03-29 · 145 d
    Special purpose vessel Safe Boreas is supporting underwater operations in a bounded area; 2.5 nautical mile clearance requested.
  2. HYDROPAC 957/26in force2026-03-29 · 145 d
    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
  3. AUSCOAST 260/26in force2026-08-01 · 20 d
    Special purpose vessel Bhagwan Dryden is conducting underwater operations at position 20-06.96S 116-26.11E, requesting 2.5 nautical miles clearance.
  4. HYDROPAC 2203/26in force2026-08-01 · 20 d
    Underwater operations by the vessel Bhagwan Dryden at 20-06.96S 116-26.11E in the Eastern Indian Ocean, Australia, request a three-mile berth.
    Eastern Indian Ocean · Australia
  5. AUSCOAST 267/26in force2026-08-05 · 16 d
    Drill rig JANSZ is at position 19-52.73S 114-36.50E, requesting a 2.5 nautical mile clearance.

By year

00
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 Indian Ocean

Archive · 403 cancelled

  1. HYDROPAC 2373/262026-08-19 → 2026-08-19
    Survey operations by vessel Fugro Kwilena are underway in the eastern Indian Ocean off Australia; a two-mile berth is requested, cancelling warning 2157/26.
    Eastern Indian Ocean · Australia
  2. 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
  3. 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.
  4. HYDROPAC 1126/262026-04-16 → 2026-08-17
    Underwater operations in progress until further notice by M/V fugro kwilena in area bound by 21-32.00S…
    Eastern Indian Ocean · Australia
  5. HYDROPAC 1112/262026-04-15 → 2026-08-17
    Survey operations in progress until further notice by M/V offshore surveyor in area bound by 19-24.00S…
    Eastern Indian Ocean · Australia
  6. HYDROPAC 1091/262026-04-11 → 2026-08-17
    Underwater operations in progress until further notice by M/V normand scorpion in area bound by 19-53.50S…
    Eastern Indian Ocean
  7. HYDROPAC 973/262026-03-31 → 2026-08-17
    Underwater operations in progress until further notice by M/V skandi singapore in 20-07.71S 115-04.27E
    Eastern Indian Ocean · Australia
  8. HYDROPAC 404/262026-02-10 → 2026-08-17
    Underwater operations in progress until further notice by M/V offshore solution in area bound by 13-46.00S…
    Eastern Indian Ocean · Australia
  9. HYDROPAC 123/262026-01-16 → 2026-08-17
    Underwater operations in progress until further notice by M/V seven sisters in area bound by 19-44.30S…
    Eastern Indian Ocean
  10. HYDROPAC 120/262026-01-16 → 2026-04-17
    Underwater operations in progress until further notice by M/V deep orient in 21-13.45S 114-38.70E
    Eastern Indian Ocean · Australia
  11. HYDROPAC 111/262026-01-14 → 2026-04-17
    Underwater operations in progress until further notice by M/V normand scorpion in area within three miles of…
    Eastern Indian Ocean
  12. HYDROPAC 76/262026-01-10 → 2026-04-17
    Underwater operations in progress by M/V siem TOPAZ/LAYN7 in area bound by 19-56.00S 113-13.20E, 19-53.5S…
    Eastern Indian Ocean · Australia
  13. HYDROPAC 74/262026-01-09 → 2026-04-17
    Underwater operations in progress until further notice by usv reach remote 2 in area bound by 19-39.70S…
    Eastern Indian Ocean
  14. HYDROPAC 3408/252025-12-21 → 2026-04-17
    Underwater operations in progress until further notice by M/V safe boreas in 13-12.20S 125-14.30E
    Eastern Indian Ocean · Australia
  15. HYDROPAC 3188/252025-12-03 → 2026-01-16
    Underwater operations in progress until further notice by M/V deep orient in 21-14.50S 114-36.70E
    Eastern Indian Ocean · Australia
  16. HYDROPAC 3151/252025-11-29 → 2026-04-17
    Underwater operations in progress until further notice by M/V offshore solution in area bound by 19-20.30S…
    Eastern Indian Ocean · Australia
  17. HYDROPAC 2452/252025-09-23 → 2026-04-17
    Underwater operations in progress until further notice by M/V dlv 2000 along trackline joining 12-59.00S…
    Eastern Indian Ocean · Australia
  18. HYDROPAC 1549/252025-06-14 → 2025-12-04
    Underwater operations in progress until further notice by M/V offshore solution in area bound by 19-30.00S…
    Eastern Indian Ocean · Australia
  19. HYDROPAC 1548/252025-06-14 → 2025-12-04
    Underwater operations in progress until further notice by M/V normand saracen in 20-08.99S 115-02.38E
    Eastern Indian Ocean · Australia
  20. HYDROPAC 1501/252025-06-11 → 2025-12-04
    Underwater operations in progress until further notice by M/V seven sisters in area bound by 19-44.31S…
    Eastern Indian Ocean
  21. HYDROPAC 1430/252025-06-03 → 2025-12-04
    Underwater operations in progress until further notice by M/V fugro etive in area bound by 21-17.70S…
    Eastern Indian Ocean · Australia
  22. HYDROPAC 1281/252025-05-17 → 2025-12-04
    Survey operations in progress until 30 jun by M/V sancar, M/V zaganos pasa, M/V ataman in areas bound by: a.…
    Northwestern Indian Ocean · Somalia
  23. HYDROPAC 1255/252025-05-15 → 2025-12-04
    Underwater operations in progress until further notice by M/V deep orient in 20-06.00S 115-03.00E
    Eastern Indian Ocean · Australia
  24. HYDROPAC 332/252025-02-10 → 2025-06-16
    Underwater operations in progress until further notice by vessel lodbrog in 19-54.00S 118-37.00E
    Eastern Indian Ocean · Australia
  25. HYDROPAC 239/252025-01-30 → 2025-06-16
    Underwater operations in progress until further notice by M/V dlv 2000 in 21-26.99S 113-49.49E
    Eastern Indian Ocean · Australia
  26. HYDROPAC 163/252025-01-23 → 2025-06-16
    Survey operations in progress until further notice by underwater gliders in area bound by 21-31.50S…
    Eastern Indian Ocean · Australia
  27. HYDROPAC 14/252025-01-03 → 2025-06-16
    Underwater operations in progress until further notice by M/V JSD6000 in 19-52.72S 114-36.48E
    Eastern Indian Ocean · Australia
  28. HYDROPAC 3787/242024-12-12 → 2025-12-04
    Underwater operations in progress until further notice by M/V seven oceanic in area bound by 19-44.31S…
    Eastern Indian Ocean
  29. HYDROPAC 3702/242024-12-03 → 2025-06-16
    Survey operations in progress until further notice by M/V skandi hercules in area bound by 21-12.85S…
    Eastern Indian Ocean · Australia
  30. HYDROPAC 3610/242024-11-22 → 2025-02-10
    Underwater operations in progress until further notice by M/V aegir in 21-13.30S 114-38.80E
    Eastern Indian Ocean · Australia
  31. HYDROPAC 3559/242024-11-17 → 2025-02-10
    Underwater operations in progress until further notice by M/V bhagwan dryden in vicinity 20-40.00S 115-24.00E
    Eastern Indian Ocean · Australia
  32. HYDROPAC 3395/242024-10-31 → 2025-02-10
    Underwater operations in progress until further notice by M/V dlv 2000 in area bound by 19-54.90S…
    Eastern Indian Ocean
  33. HYDROPAC 3240/242024-10-11 → 2025-02-10
    Underwater operations in progress until further notice by M/V skandi hercules in area bound by 19-30.00S…
    Eastern Indian Ocean · Australia
  34. HYDROPAC 3057/242024-09-17 → 2024-11-22
    Underwater operations in progress until further notice by vessel M/V deep orient in 19-54.80S 115-07.80E
    Eastern Indian Ocean · Australia
  35. HYDROPAC 2969/242024-09-09 → 2024-11-22
    Survey operations in progress until further notice by M/V tenggara explorer in area bound by 17-48.06S…
    Eastern Indian Ocean · Australia
  36. HYDROPAC 2835/242024-08-28 → 2024-11-22
    Underwater operations in progress until further notice by M/V skandi hercules in area bound by 21-22.00S…
    Eastern Indian Ocean · Australia
  37. HYDROPAC 1533/242024-05-08 → 2024-05-10
    Underwater operations in progress until further notice by M/V deep orient in area bound by 21-08.46S…
    Eastern Indian Ocean · Australia
  38. HYDROPAC 1398/242024-04-28 → 2024-05-08
    Underwater operations in progress until further notice by M/V deep orient in area bound by 21-27.09S…
    Eastern Indian Ocean · Australia
  39. HYDROPAC 1322/242024-04-23 → 2024-05-07
    Underwater operations in progress until further notice by M/V limitless in area bound by 21-26.47S…
    Eastern Indian Ocean · Australia
  40. HYDROPAC 1321/242024-04-22 → 2026-08-14
    Survey operations by vessel Skandi Hercules are in progress in the Eastern Indian Ocean off Australia until further notice; a three-mile berth is requested.
    Eastern Indian Ocean · Australia
  41. HYDROPAC 1278/242024-04-19 → 2024-04-24
    Underwater operations in progress until further notice by M/V bold explorer in area bound by 31-37.00S…
    Southeastern Indian Ocean · Australia
  42. HYDROPAC 1219/242024-04-15 → 2026-08-14
    Underwater survey operations by the vessel Fugro Kwilena are underway in the eastern Indian Ocean off Australia.
    Eastern Indian Ocean · Australia
  43. HYDROPAC 1207/242024-04-13 → 2024-04-13
    Underwater operations in progress until further notice by M/V deep orient in area bound by 21-27.04S…
    Eastern Indian Ocean · Australia
  44. HYDROPAC 1188/242024-04-12 → 2026-08-14
    Underwater operations are in progress by vessel Bhagwan Dryden near 20-41S 115-24E until further notice; three-mile berth requested, cancels prior warning 546/24.
    Eastern Indian Ocean · Australia
  45. HYDROPAC 1087/242024-04-05 → 2026-08-14
    Underwater operations by vessel DLV 2000 in eastern Indian Ocean at 19-54.60S 113-14.80E until further notice. Three mile berth requested.
    Eastern Indian Ocean
  46. HYDROPAC 1039/242024-03-31 → 2026-08-14
    Underwater operations by vessel Bravenes are underway in the Eastern Indian Ocean off Australia along a trackline until further notice; one mile berth requested.
    Eastern Indian Ocean · Australia
  47. HYDROPAC 850/242024-03-13 → 2024-03-22
    Underwater operations in progress until further notice by M/V sapura constructor in area bound by 21-17.82S…
    Eastern Indian Ocean · Australia
  48. HYDROPAC 711/242024-03-02 → 2026-08-14
    Underwater operations are in progress by vessel Skandi Hercules in the Eastern Indian Ocean off Australia, with a three-mile berth requested.
    Eastern Indian Ocean · Australia
  49. HYDROPAC 675/242024-02-27 → 2024-04-13
    Underwater operations in progress until further notice by M/V deep orient in area bound by 21-44.25S…
    Eastern Indian Ocean · Australia
  50. HYDROPAC 559/242024-02-17 → 2024-02-24
    Underwater operations in progress by M/V deep orient in area bound by 21-44.25S 114-35.67E, 21-44.25S…
    Bali Sea · Eastern Indian Ocean · Java Sea · Australia

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 Indian Ocean · seahazards