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 · 146 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 · 146 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

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07
08
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10
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20
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26

By month (all years)

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Other hazards in the Indian Ocean

Archive · 403 cancelled

  1. HYDROPAC 181/022002-01-29 → 2002-02-24
    Underwater research operations 03 thru 23 feb by M/V shinkai 6500 and M/V yokosuka within ten miles of…
  2. HYDROPAC 133/022002-01-22 → 2002-04-26
    Submerged oceanographic moorings established in: 1. 32-03.14S 115-07.18E
  3. HYDROPAC 286/002000-02-18 → 2000-05-26
    Oceanographic buoy, FL(5) y 20 sec, established in 18-45.7S 117-07.9E

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 — page 9 · seahazards