Indian Ocean

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

in force
23
last 12 months
27
since 1997
3,523
categories
15

In force now · 23

  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. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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.
  12. 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.
  13. 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.
  14. 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.
  15. 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.
  16. 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.
  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%
Missiles54415%
Nav aids46113%
Surveys37911%
Other37611%
Exercises35310%
Piracy34110%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,500 cancelled

  1. HYDROPAC 3877/17 · Derelicts2017-11-09 → 2017-11-12
    Derelict 24 meter F/V, white hull, partially submerged and adrift in 23-38.8S 052-48.7E on 09 nov
  2. HYDROPAC 3876/17 · Surveys2017-11-09 → 2017-11-13
    Underwater operations in progress until further notice by vessel jodies resolution in 33-16.19S 114-19.37E
  3. HYDROPAC 3826/17 · Derelicts2017-11-06 → 2017-11-09
    Derelict F/V, white hull, partially submerged and adrift in 24-27.4S 053-46.9E on 04 nov
  4. HYDROPAC 3761/17 · Missiles2017-11-03 → 2017-11-08
    Hazardous operations, space debris 0353Z to 0509Z daily 08 nov thru 08 dec in area bound by 14-37S 089-58E,…
  5. HYDROPAC 3754/17 · Surveys2017-11-02 → 2017-11-15
    Underwater operations in progress until further notice by M/V geo resolution along trackline between…
  6. HYDROPAC 3723/17 · Nav aids2017-10-31 → 2017-11-09
    Cape leveque light 16-23.8S 122-55.7E unreliable
  7. HYDROPAC 3717/17 · Surveys2017-10-30 → 2017-11-07
    Underwater operations in progress until further notice by M/V fugro etive in area within two miles of…
  8. HYDROPAC 3657/17 · Derelicts2017-10-26 → 2017-10-29
    Derelict F/V partially submerged and adrift in vicinity 26-43S 055-36E
  9. HYDROPAC 3634/17 · Other2017-10-25 → 2017-10-28
    Steel cylindrical object with 80 meters of rope adrift in 12-02.36S 123-17.00E at 250534Z oct
  10. HYDROPAC 3629/17 · Other2017-10-25 → 2017-10-25
    Vessel ming man hsiang 18 on fire in 26-43.20S 055-36.00E at 250055Z oct
  11. HYDROPAC 3562/17 · Surveys2017-10-18 → 2017-11-13
    Underwater operations in progress until further notice by M/V joides resolution in 33-47.60S 112-29.13E
  12. HYDROPAC 3554/17 · Derelicts2017-10-17 → 2017-10-20
    Derelict F/V adrift in vicinity 04-28S 057-43E at 160200Z oct
  13. HYDROPAC 3444/17 · Nav aids2017-10-09 → 2017-10-09
    Exmouth dgps station 21-53.1S 114-08.0E inoperative
  14. HYDROPAC 3397/17 · Debris2017-10-04 → 2017-10-07
    One mile long object adrift in 21-19.43S 055-00.00E
  15. HYDROPAC 3386/17 · Derelicts2017-10-03 → 2017-10-06
    Derelict F/V kapila KUMARA2 adrift in 03-14N 080-45E at 012330Z oct
  16. HYDROPAC 3377/17 · Nav aids2017-10-03 → 2017-10-03
    Exmouth dgps station 21-53.1S 114-08.0E inoperative
  17. HYDROPAC 3376/17 · Surveys2017-10-03 → 2017-10-10
    Underwater operations in progress until further notice by M/V far sirius in 19-45.5S 115-47.1E
  18. HYDROPAC 3268/17 · Missiles2017-09-22 → 2017-09-24
    Hazardous operations, rocket launching 1506Z to 1627Z daily 23 thru 26 sep in area bound by 52-13S 142-32E,…
  19. HYDROPAC 3232/17 · Nav aids2017-09-20 → 2017-09-20
    Perth dgps station 31-47.9S 115-56.0E inoperative
  20. HYDROPAC 3204/17 · Missiles2017-09-18 → 2017-09-22
    Hazardous operations, rocket launching 1506Z to 1627Z daily 22 thru 25 sep in area bound by 52-13S 142-32E,…

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