Indian Ocean

IHO sea area 45 · 20° to 147° E, -60° to 10° N

in force
21
last 12 months
56
since 1997
3,589
categories
15

In force now · 21

  1. NAVAREA X 96/26 · Missiles2026-08-20
    Space debris danger area 100 nautical miles either side of a line in the Southern Ocean from Cape Darnley to Tasmania, daily 25-31 August 2026 0809-1608 UTC.
  2. AUSCOAST 279/26 · Surveys2026-08-19
    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.
  3. AUSCOAST 275/26 · Surveys2026-08-16
    Drill rig Transocean Endurance is at position 19-31.18S 116-06.65E, requesting 2.5 nautical miles clearance.
  4. HYDROPAC 2330/26 · Nav aids2026-08-14
    Four yellow buoys with flashing yellow light every 5 seconds established near 29-27.00S 114-52.18E.
  5. AUSCOAST 273/26 · Nav aids2026-08-14
    Four yellow surface buoys with flashing yellow light every 5 seconds established within 0.3 nautical miles of 29-27.00S 114-52.18E.
  6. HYDROPAC 2327/26 · Missiles2026-08-13
    Space debris hazard operations in the Indian Ocean from August 16 to 23, daily 0148Z to 0429Z, between 23S-38S and 058E-074E.
  7. HYDROPAC 2323/26 · Cable ops2026-08-13
    Cable operations by vessel Rebecca continue until 15 September in eastern Indian Ocean off Sri Lanka; wide berth requested.
  8. HYDROPAC 2288/26 · Surveys2026-08-10
    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.
  9. AUSCOAST 270/26 · Surveys2026-08-10
    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.
  10. HYDROPAC 2302/26 · Missiles2026-08-08
    Space debris operations in the Indian Ocean from Aug 16 to 22 in an area near 25S 58E to 37S 71E.
  11. AUSCOAST 267/26 · Surveys2026-08-05
    Drill rig JANSZ is at position 19-52.73S 114-36.50E, requesting a 2.5 nautical mile clearance.
  12. HYDROPAC 2235/26 · Missiles2026-08-02
    Space debris hazard operations are scheduled in the Eastern Indian Ocean and South Pacific on August 10-16, 2026, during specific time windows.
  13. HYDROPAC 2203/26 · Surveys2026-08-01
    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.
  14. AUSCOAST 260/26 · Surveys2026-08-01
    Special purpose vessel Bhagwan Dryden is conducting underwater operations at position 20-06.96S 116-26.11E, requesting 2.5 nautical miles clearance.
  15. HYDROPAC 2115/26 · Nav aids2026-07-24
    Cliff Head platform at 29-26.99S 114-52.18E is unlit; the Hydropac warning 2088/26 is canceled.
  16. AUSCOAST 253/26 · Nav aids2026-07-24
    Cliff Head Platform light in position 29-26.99S 114-52.18E is unlit.
  17. HYDROPAC 1015/26 · Other2026-04-04
    A flashing white mooring buoy in the eastern Indian Ocean near Australia is semi-submerged at 20-16.32S 116-16.58E.
  18. AUSCOAST 130/26 · Other2026-04-04
    A semi-submerged mooring light buoy with a flashing white light is at position 20-16.32S 116-16.58E.
  19. HYDROPAC 957/26 · Surveys2026-03-29
    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.
  20. AUSCOAST 120/26 · Surveys2026-03-29
    Special purpose vessel Safe Boreas is supporting underwater operations in a bounded area; 2.5 nautical mile clearance requested.
  21. HYDROPAC 363/24 · Other2024-01-30
    At 21-06.00S 055-36.00E, MRCC La Réunion is unable to receive MF and HF transmissions; for assistance contact them at 2622 6243 4343 or [email protected].

Longest in force

  1. HYDROPAC 363/24 · Other2024-01-30
    At 21-06.00S 055-36.00E, MRCC La Réunion is unable to receive MF and HF transmissions; for assistance contact them at 2622 6243 4343 or [email protected].
  2. AUSCOAST 120/26 · Surveys2026-03-29
    Special purpose vessel Safe Boreas is supporting underwater operations in a bounded area; 2.5 nautical mile clearance requested.
  3. HYDROPAC 957/26 · Surveys2026-03-29
    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.
  4. AUSCOAST 130/26 · Other2026-04-04
    A semi-submerged mooring light buoy with a flashing white light is at position 20-16.32S 116-16.58E.
  5. HYDROPAC 1015/26 · Other2026-04-04
    A flashing white mooring buoy in the eastern Indian Ocean near Australia is semi-submerged at 20-16.32S 116-16.58E.

By year

97
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

By category · since 1997

Derelicts62217%
Missiles56016%
Nav aids46713%
Surveys41211%
Other37610%
Exercises35710%
Piracy34110%
Cable ops1955%
Debris1093%
Icebergs822%
Wrecks371%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,568 cancelled

  1. HYDROPAC 923/02 · Other2002-05-18 → 2002-05-18
    M/V regal unity reports crewman with suspected appendicitis requiring medical assistance in 07-41N 053-20E…
  2. HYDROPAC 897/02 · Icebergs2002-05-14 → 2002-05-21
    Iceberg reported in 49-57.7S 068-04.0E at 131315Z may
  3. HYDROPAC 888/02 · Surveys2002-05-13 → 2002-05-17
    Underwater operations in progress until further notice by M/V seahorse standard vicinity of 32-16S 115-30E
  4. HYDROPAC 857/02 · Wrecks2002-05-08 → 2002-05-08
    S/V aground on cosmoledo island (09-00S 047-00E)
  5. HYDROPAC 852/02 · Nav aids2002-05-07 → 2002-05-08
    Adele island light 15-30.7S 123-09.4E unlit
  6. HYDROPAC 850/02 · Nav aids2002-05-07 → 2002-05-08
    RACON at adele island light 15-30.7S 123-09.4E temporarily discontinued
  7. HYDROPAC 759/02 · Surveys2002-04-23 → 2002-06-20
    Underwater operations in progress until further notice by M/V shaheda vicinity 20-41.9S 115-33.8E
  8. HYDROPAC 668/02 · Derelicts2002-04-10 → 2002-04-17
    Derelict 15 meter F/V, white hull, adrift in 13-17.7S 124-54.6E at 100210Z apr
  9. HYDROPAC 556/02 · Surveys2002-03-24 → 2002-07-30
    Underwater operations in progress until further notice by M/V geo explorer in area bound by 15-30S 119-30E,…
  10. HYDROPAC 541/02 · Surveys2002-03-23 → 2002-03-27
    Underwater survey operations in progress until further notice by M/V mariner vicinity 19-30S 116-36E
  11. HYDROPAC 485/02 · Other2002-03-17 → 2002-05-03
    M/V agios georgios reports seriously ill crewman requiring medical assistance in 00-45N 087-17E at 170825Z mar
  12. HYDROPAC 444/02 · Icebergs2002-03-11 → 2002-03-18
    Iceberg reported vicinity 43-58S 037-08E at 081530Z mar
  13. HYDROPAC 320/02 · Other2002-02-20 → 2002-04-05
    M/V black watch reports crew member with appendicitis requiring medical assistance vicinity 01-46.7N 054-07.8E
  14. HYDROPAC 316/02 · Cable ops2002-02-19 → 2002-02-22
    Underwater operations in progress until further notice by cableship venturer in 19-57S 116-21E
  15. HYDROPAC 308/02 · Cable ops2002-02-18 → 2002-02-19
    Underwater operations in progress until further notice by cableship venturer in 20-00S 115-29E
  16. HYDROPAC 301/02 · Cable ops2002-02-17 → 2002-02-18
    Underwater operations in progress until further notice by cableship venturer in 19-48S 116-36E
  17. HYDROPAC 296/02 · Cable ops2002-02-16 → 2002-02-17
    Underwater operations in progress until further notice by cableship venturer in 19-57S 116-21E
  18. HYDROPAC 262/02 · Cable ops2002-02-12 → 2002-02-16
    Underwater operations in progress until further notice by cableship venturer in 19-48S 116-36E
  19. HYDROPAC 234/02 · Piracy2002-02-06 → 2002-02-22
    360 foot M/V princess sarah anchored and unlit in 08-12N 050-17E with no crew
  20. HYDROPAC 204/02 · Icebergs2002-02-01 → 2002-02-08
    Iceberg reported vicinity 41-58S 043-43E

Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts.