Indian Ocean

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

in force
21
last 12 months
28
since 1997
3,524
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
26

By month (all years)

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

By category · since 1997

Derelicts62118%
Missiles54515%
Nav aids46113%
Surveys37911%
Other37611%
Exercises35310%
Piracy34110%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,503 cancelled

  1. HYDROPAC 2550/13 · Exercises2013-08-26 → 2013-08-28
    Gunnery exercises 0300Z to 2000Z daily 27 and 28 aug in area bound by 21-12.0S 054-57.0E, 21-26.0S…
  2. HYDROPAC 2540/13 · Derelicts2013-08-25 → 2013-08-28
    Derelict 13 meter F/V amara, blue hull, adrift vicinity 07-21S 049-06E at 220400Z aug
  3. HYDROPAC 2488/13 · Derelicts2013-08-20 → 2013-08-23
    Derelict vessel partially submerged and adrift in 08-22.1S 105-26.2E at 200700Z aug
  4. HYDROPAC 2487/13 · Missiles2013-08-20 → 2013-08-23
    Hazardous operations 1400Z to 1600Z daily 22 and 23 aug within: a. 105 miles of 32-33S 038-29E
  5. HYDROPAC 2479/13 · Other2013-08-19 → 2013-08-19
    Vessel requiring medical assistance in 08-25.91S 105-28.96E at 192027Z aug
  6. HYDROPAC 2466/13 · Derelicts2013-08-18 → 2013-08-21
    Derelict 15 meter F/V adrift in 10-08.5S 105-27.4E at 180920Z aug
  7. HYDROPAC 2453/13 · Missiles2013-08-17 → 2013-08-21
    Hazardous operations 190400Z to 192000Z aug, 0100Z to 2000Z daily 20 and 21 aug in area bound by 21-35S…
  8. HYDROPAC 2439/13 · Other2013-08-15 → 2013-08-16
    M/V genmar requesting medical assistance in 06-57S 102-11E at 151530Z aug
  9. HYDROPAC 2432/13 · Derelicts2013-08-15 → 2013-08-18
    Derelict 15 meter vessel partially submerged and adrift in 02-00.67S 083-47.18E at 150230Z aug
  10. HYDROPAC 2422/13 · Derelicts2013-08-14 → 2013-08-16
    Derelict 20 meter vessel, green and white hull, adrift in 08-52S 105-14E at 131445Z aug
  11. HYDROPAC 2416/13 · Derelicts2013-08-13 → 2013-08-13
    F/V disabled and adrift in 08-43S 105-15E at 130753Z aug
  12. HYDROPAC 2373/13 · Derelicts2013-08-08 → 2013-08-11
    Derelict vessel adrift vicinity 29-32S 038-42E on 08 aug
  13. HYDROPAC 2336/13 · Other2013-08-06 → 2013-08-06
    Vessel taking on water in 09-30S 105-45E at 060623Z aug
  14. HYDROPAC 2297/13 · Derelicts2013-08-03 → 2013-08-06
    Derelict 20 meter vessel, blue hull, adrift in 09-51.5S 106-03.4E at 030258Z aug
  15. HYDROPAC 2291/13 · Derelicts2013-08-02 → 2013-08-03
    Vessel disabled and adrift in 08-07.15S 107-47.75E at 011156Z aug
  16. HYDROPAC 2289/13 · Derelicts2013-08-02 → 2013-08-05
    Derelict 15 meter F/V adrift vicinity 09-32S 105-12E at 020630Z aug
  17. HYDROPAC 2252/13 · Derelicts2013-07-30 → 2013-08-02
    Derelict F/V partially submerged and adrift vicinity 11-53.7S 122-35.9E at 300148Z jul
  18. HYDROPAC 2248/13 · Derelicts2013-07-29 → 2013-08-01
    Derelict 24 meter vessel, turquoise hull, partially submerged and adrift in 09-40.3S 104-26.5E at 290746Z jul
  19. HYDROPAC 2239/13 · Derelicts2013-07-28 → 2013-07-31
    Derelict 14 meter vessel, white hull, partially submerged and adrift in 12-06.2S 122-43.8E at 280158Z jul
  20. HYDROPAC 2152/13 · Derelicts2013-07-21 → 2013-07-24
    Derelict 12 meter F/V, green hull, adrift in 13-28.27S 121-37.17E at 210630Z jul

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