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 1361/01 · Nav aids2001-08-20 → 2001-08-23
    RACON at bedout islet light 19-35.4S 119-06.0E unreliable
  2. HYDROPAC 1134/01 · Containers2001-07-17 → 2001-07-24
    25 containers adrift in 39-57S 067-26E
  3. HYDROPAC 1037/01 · Nav aids2001-07-04 → 2001-07-06
    Gantheaume point light 17-58.5S 122-10.6E unlit
  4. HYDROPAC 869/01 · Other2001-06-07 → 2001-06-11
    Crew of vessel jin hong da 1 abandoned ship in lifeboat in 32-00S 057-40E
  5. HYDROPAC 705/01 · Cable ops2001-05-09 → 2001-06-16
    Cable laying operations in progress until further notice by cableship vercors along trackline joining…
  6. HYDROPAC 690/01 · Cable ops2001-05-07 → 2001-05-13
    Cable laying operations in progress until 12 may by cableship long lines vicinity of trackline joining…
  7. HYDROPAC 656/01 · Other2001-04-30 → 2001-05-01
    Crew of F/V nerri lee 2 abandoned ship in 24-59S 113-06E at 301705Z apr
  8. HYDROPAC 587/01 · Derelicts2001-04-20 → 2001-04-27
    Derelict 20 meter F/V adrift vicinity 15-49S 122-49E at 200400Z apr
  9. HYDROPAC 578/01 · Derelicts2001-04-18 → 2001-04-20
    Derelict 20 meter F/V adrift vicinity 15-07S 123-23E at 181200Z apr
  10. HYDROPAC 568/01 · Nav aids2001-04-17 → 2001-04-20
    Pelsaert island light 28-59.4S 113-57.7E unlit
  11. HYDROPAC 502/01 · Other2001-04-03 → 2001-05-18
    M/V sunshine reports crewman with foot injury in 01-43N 046-53E at 031300Z apr
  12. HYDROPAC 296/01 · Cable ops2001-02-22 → 2001-03-01
    Cable laying operations 21 thru 28 feb by cableship long lines along trackline between 28-26.6S 046-56.5E…
  13. HYDROPAC 289/01 · Nav aids2001-02-21 → 2001-02-24
    RACON at red bluff light 17-03.5S 122-19.0E off air
  14. HYDROPAC 146/01 · Other2001-01-29 → 2001-03-16
    F/V celtic bay reports injured crewman vicinity 31-57S 058-30E
  15. HYDROPAC 93/01 · Icebergs2001-01-18 → 2001-01-25
    Large iceberg reported in 46-28S 049-33E at 181200Z jan
  16. HYDROPAC 90/01 · Icebergs2001-01-18 → 2001-01-25
    Large iceberg reported in 46-40S 050-37E at 171200Z jan
  17. HYDROLANT 11/01 · Other2001-01-02 → 2001-01-07
    M/V knor reports crewman with respiratory arrest in 51-21S 022-44E
  18. HYDROPAC 4/01 · Other2001-01-02 → 2001-01-05
    M/V knor reports crewman with respiratory arrest in 51-21S 022-44E
  19. HYDROPAC 1857/00 · Other2000-12-29 → 2001-01-05
    Underwater ordnance detonations 050500Z to 050900Z jan vicinity 01-49S 081-38E
  20. HYDROPAC 1697/00 · Icebergs2000-11-22 → 2000-11-29
    Icebergs reported in: a. 48-12S 060-45E

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