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 69/03 · Nav aids2003-01-15 → 2003-01-23
    Ile tromelin light 15-53.0S 054-31.0E unlit until 231200Z jan
  2. HYDROPAC 44/03 · Surveys2003-01-11 → 2003-01-22
    Underwater operations in progress until further notice by M/V rockwater 2 vicinity 20-55S 114-55E
  3. HYDROPAC 42/03 · Exercises2003-01-10 → 2003-01-14
    Hazardous operations 140500Z to 140730Z and 140900Z to 141200Z jan in area bound by 21-12.0S 054-57.0E,…
  4. HYDROPAC 36/03 · Derelicts2003-01-09 → 2003-01-10
    Derelict F/V adrift vicinity 17-21S 120-36E at 082200Z jan
  5. HYDROPAC 35/03 · Nav aids2003-01-09 → 2003-01-10
    Maatsuyker island light 43-39.5S 146-16.2E unlit
  6. HYDROPAC 26/03 · Exercises2003-01-07 → 2003-01-09
    Hazardous operations 090630Z to 090800Z and 091000Z to 091100Z jan in area bound by 21-12.5S 054-57.0E,…
  7. HYDROPAC 5/03 · Nav aids2003-01-03 → 2003-01-15
    Ile tromelin light 15-53.0S 054-31.0E unlit
  8. HYDROPAC 2337/02 · Derelicts2002-12-11 → 2002-12-20
    M/V jasmina disabled and adrift due to engine casualty vicinity 03-05S 047-21E at 060300Z dec
  9. HYDROPAC 2311/02 · Exercises2002-12-07 → 2002-12-12
    Hazardous operations 11 dec in area bound by 03-54N 077-20E, 01-53N 075-46E, 00-00 077-33E, 00-00 086-06E,…
  10. HYDROPAC 2295/02 · Other2002-12-06 → 2002-12-07
    M/V ocean vanguard reports crewman requiring medical assistance in 18-00S 086-59E at 060700Z dec
  11. HYDROPAC 2203/02 · Containers2002-11-25 → 2002-12-02
    11 containers adrift vicinity 28-55.7S 035-04.5E
  12. HYDROPAC 2121/02 · Other2002-11-17 → 2003-01-04
    M/V eric ld reports crewman with head injury in 05-22N 052-40E
  13. HYDROPAC 2087/02 · Other2002-11-11 → 2002-11-11
    Crew abandoning ship in 05-14.3N 083-04.0E
  14. HYDROPAC 2085/02 · Other2002-11-11 → 2002-11-11
    M/V hanjin pennsylvania on fire in 05-26.3N 083-01.1E
  15. HYDROPAC 2025/02 · Exercises2002-10-28 → 2002-10-29
    Gunnery exercises 291300Z to 291700Z oct in area bound by 21-12.5S 054-57.0E, 21-26.0S 055-02.5E, 21-31.2S…
  16. HYDROPAC 1914/02 · Derelicts2002-10-12 → 2002-11-23
    16 meter F/V vetyver 6 disabled and adrift due to engine casualty vicinity 21-58S 052-58E
  17. HYDROPAC 1852/02 · Other2002-10-04 → 2002-10-05
    Red flare reported vicinity 27-41S 113-45E at 041805Z oct
  18. HYDROPAC 1823/02 · Surveys2002-10-02 → 2002-11-01
    Underwater operations 07 thru 31 oct by M/V yokosuka towing submersible in area bound by 07-50S 106-50E,…
  19. HYDROPAC 1803/02 · Exercises2002-09-30 → 2002-10-09
    Gunnery exercises 031230Z to 031330Z, 050600Z to 050700Z, 070630Z to 070730Z, 071200Z to 071300Z and 090500Z…
  20. HYDROPAC 1802/02 · Exercises2002-09-30 → 2002-10-10
    Gunnery exercises 031100Z to 031200Z, 050430Z to 050730Z, 050930Z to 051230Z, 070500Z to 070800Z, 071030Z to…

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