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 1692/00 · Nav aids2000-11-20 → 2001-02-02
    Cape recife light 34-01.7S 025-42.1E temporarily changed to: f & LFL(3) wr 117 sec
  2. HYDROPAC 1691/00 · Other2000-11-20 → 2001-01-05
    M/V vittoria vicinity 04-31S 055-04E at 201000Z nov, in need of water, supplies and diesel fuel
  3. HYDROPAC 1651/00 · Other2000-11-10 → 2000-11-10
    M/V reports engine room fire in 18-48.5S 118-11.6E at 101250Z nov
  4. HYDROPAC 1647/00 · Derelicts2000-11-10 → 2000-11-17
    Derelict 15 meter F/V partially submerged and adrift vicinity 08-23.2S 092-25.9E at 100420Z nov
  5. HYDROPAC 1627/00 · Derelicts2000-11-06 → 2000-11-06
    Derelict F/V adrift vicinity 12-14.5S 122-43.1E at 061100Z nov
  6. HYDROPAC 1609/00 · Other2000-11-02 → 2000-12-15
    F/V albacan reports injured crewman vicinity 05-30N 053-45E at 010348Z nov
  7. HYDROPAC 1575/00 · Other2000-10-27 → 2000-10-28
    M/V franklin reports crewman suffering stroke in 34-00S 096-05E at 270000Z oct
  8. HYDROPAC 1572/00 · Nav aids2000-10-26 → 2000-10-27
    Guilderton light 31-20.4S 115-29.4E unlit
  9. HYDROPAC 1540/00 · Other2000-10-19 → 2000-10-19
    M/V franklin reports crewman with kidney stones requiring medical assistance in 19-05S 095-00E at 191340Z oct
  10. HYDROPAC 1378/00 · Derelicts2000-09-17 → 2000-09-24
    Derelict M/V madona partially submerged and adrift in 09-26S 099-18E at 161142Z sep
  11. HYDROPAC 1373/00 · Other2000-09-16 → 2000-09-16
    Crew of M/V madona abandoned ship vicinity 09-48S 099-15E
  12. HYDROPAC 1359/00 · Derelicts2000-09-13 → 2000-09-20
    Derelict 22 meter F/V adrift vicinity 12-11.3S 122-50.8E at 131200Z sep
  13. HYDROPAC 1320/00 · Icebergs2000-09-04 → 2000-09-11
    Icebergs reported in: a. 48-32S 033-13E
  14. HYDROPAC 1202/00 · Other2000-08-14 → 2000-08-18
    Underwater ordnance detonations 180001Z to 181100Z aug vicinity: a. 00-00 084-00E
  15. HYDROPAC 1201/00 · Nav aids2000-08-13 → 2000-12-19
    Unlit white mooring buoy established in 13-13.7S 122-33.1E
  16. HYDROPAC 1105/00 · Cable ops2000-07-26 → 2000-07-27
    Seismic survey in progress until further notice by M/V geco beta towing three mile long cable along…
  17. HYDROPAC 1098/00 · Icebergs2000-07-25 → 2000-08-01
    Large iceberg reported in 46-38S 049-56E at 250600Z jul
  18. HYDROPAC 1052/00 · Other2000-07-16 → 2000-09-01
    F/V chen yuan reports crewman in coma requiring medical assistance in 27-25S 074-09E at 160400Z jul
  19. HYDROPAC 1036/00 · Other2000-07-14 → 2000-07-15
    F/V chen yuan reports crewman with paralysis in 31-00S 082-00E at 141000Z jul
  20. HYDROPAC 920/00 · Other2000-06-23 → 2000-08-11
    M/V front lady reports crewman with very high fever vicinity 09-51S 071-13E at 231130Z jun

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