Indian Ocean

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

in force
23
last 12 months
23
since 1997
3,519
categories
15

In force now · 23

  1. 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.
  2. 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.
  3. NAVAREA X 94/26 · Missiles2026-08-15
    Space debris danger area is in effect from Cape Darnely to Tasmania, daily 1525-2235 UTC, 20-26 August 2026.
  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. NAVAREA X 91/26 · Missiles2026-08-05
    Space debris danger area from Cape Darnley to Tasmania, 80 nautical miles either side of centreline, daily between 1455 and 2205 UTC, 10 to 16 August 2026.
  13. 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.
  14. 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.
  15. 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.
  16. HYDROPAC 2157/26 · Surveys2026-07-27
    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.
  17. 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.
  18. AUSCOAST 253/26 · Nav aids2026-07-24
    Cliff Head Platform light in position 29-26.99S 114-52.18E is unlit.
  19. 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.
  20. 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.
  21. 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.
  22. 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.
  23. 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%
Missiles54215%
Nav aids46113%
Surveys37811%
Other37611%
Exercises35310%
Piracy34010%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,496 cancelled

  1. HYDROPAC 3883/19 · Derelicts2019-11-26 → 2019-11-29
    Three barges adrift in vicinity between lancelin (31-00-50S 115-19-48E) and bunbury (33-20-00S 115-38-00E)
  2. HYDROPAC 3879/19 · Surveys2019-11-26 → 2019-12-01
    Survey operations in progress until further notice by M/V polar duchess along trackline joining 16-30S…
  3. HYDROPAC 3865/19 · Debris2019-11-25 → 2019-11-28
    Fishing nets adrift in vicinity 21-03.14S 055-10.93E
  4. HYDROPAC 3864/19 · Derelicts2019-11-25 → 2019-11-28
    Debris from sunken vessel partially submerged and adrift in vicinity 27-48.3S 049-05.5E
  5. HYDROPAC 3857/19 · Derelicts2019-11-25 → 2019-11-28
    Derelict vessel white and blue hull partially submerged and adrift in 27-04.3S 049-00.5E at 241315Z nov
  6. HYDROPAC 3820/19 · Missiles2019-11-21 → 2019-11-27
    Hazardous operations, rocket launching 270330Z to 270530Z nov in areas: a. within ten miles of 13-43.2N…
  7. HYDROPAC 3815/19 · Missiles2019-11-21 → 2019-11-21
    Hazardous operations, rocket launching 0330Z to 0530Z daily 25 thru 27 nov in areas: a. within ten miles of…
  8. HYDROPAC 3800/19 · Derelicts2019-11-20 → 2019-11-23
    Derelict vessel, black and white hull, partially submerged and adrift in 21-50S 052-10E
  9. HYDROPAC 3782/19 · Derelicts2019-11-18 → 2019-11-21
    Derelict vessel adrift in 21-15.2S 052-11.2E
  10. HYDROPAC 3765/19 · Derelicts2019-11-16 → 2019-11-19
    Derelict vessel, black and white hull, adrift in 21-15.2S 052-11.2E
  11. HYDROPAC 3713/19 · Derelicts2019-11-12 → 2019-11-15
    Derelict vessel adrift in 08-24S 105-04E at 120400Z nov
  12. HYDROPAC 3706/19 · Derelicts2019-11-11 → 2019-11-14
    Derelict M/V yarrawonga, red and white hull, partially submerged and adrift in vicinity 23-10.64S 051-02.46E…
  13. HYDROPAC 3704/19 · Wrecks2019-11-11 → 2019-11-14
    Ten meter obstruction adrift in vicinity 30-13.00S 047-12.46E
  14. HYDROPAC 3703/19 · Wrecks2019-11-11 → 2019-11-14
    Partially submerged wreck adrift in 26-21.10S 048-31.49E
  15. HYDROPAC 3695/19 · Wrecks2019-11-10 → 2019-11-11
    Partially submerged wreck adrift in 26-21.10S 048-31.49E
  16. HYDROPAC 3693/19 · Derelicts2019-11-10 → 2019-11-12
    Derelict vessel adrift in 08-30.41S 105-44.75E at 100511Z nov
  17. HYDROPAC 3659/19 · Missiles2019-11-06 → 2019-11-12
    Hazardous operations, space debris 111656Z to 111740Z nov, alternate 121634Z to 121719Z nov in area bound by…
  18. HYDROPAC 3655/19 · Missiles2019-11-05 → 2019-11-10
    Missile operations 080001Z to 092359Z nov in areas within: a. five miles of 17-39.24N 083-37.81E
  19. HYDROPAC 3647/19 · Exercises2019-11-04 → 2019-11-09
    Hazardous operations 0630Z to 1030Z daily 08 and 09 nov in areas bound by: a. 17-46.80N 083-26.47E,…
  20. HYDROPAC 3610/19 · Nav aids2019-11-01 → 2019-11-03
    Point d'entrecasteaux light 34-50-20S 116-00-14E unlit

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