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 1795/02 · Other2002-09-29 → 2002-09-29
    M/V astro lynx reports crewman with injury requiring medical assistance in 05-56N 052-23E at 291600Z sep
  2. HYDROPAC 1770/02 · Nav aids2002-09-27 → 2002-09-30
    Pointe de bel air light 20-52.3S 055-36.0E unreliable
  3. HYDROPAC 1742/02 · Exercises2002-09-23 → 2002-09-26
    Gunnery exercises 260500Z to 260800Z sep in area bound by 21-12.0S 054-57.0E, 21-26.0S 055-02.5E, 21-31.2S…
  4. HYDROPAC 1726/02 · Containers2002-09-21 → 2002-09-27
    Container adrift vicinity 05-37.7S 078-47.6E at 201212Z sep
  5. HYDROPAC 1681/02 · Nav aids2002-09-15 → 2002-09-16
    Pointe de bel air light 20-53.3S 055-36.5E unreliable
  6. HYDROPAC 1672/02 · Exercises2002-09-13 → 2002-09-18
    Gunnery exercises 170500Z to 170800Z and 180900Z to 181200Z sep in area bound by 21-09.5S 054-32.5E,…
  7. HYDROPAC 1638/02 · Exercises2002-09-08 → 2002-09-10
    Gunnery exercises 100430Z to 100700Z sep in area bound by 20-47S 054-57E, 20-50S 055-12E, 20-57S 055-12E,…
  8. HYDROPAC 1637/02 · Exercises2002-09-08 → 2002-09-10
    Gunnery exercises 101000Z to 101100Z sep in area bound by 21-12.0S 054-57.0E, 21-26.0S 055-02.5E, 21-31.2S…
  9. HYDROPAC 1618/02 · Nav aids2002-09-05 → 2002-10-05
    Bel air light 20-53.3S 055-36.5E unreliable
  10. HYDROPAC 1578/02 · Other2002-08-30 → 2002-10-11
    M/V westa reports captain with possible stroke in 07-19N 052-27E
  11. HYDROPAC 1323/02 · Icebergs2002-07-19 → 2002-07-26
    Iceberg sighted in 49-04S 063-39E at 181050Z jul
  12. HYDROPAC 1316/02 · Icebergs2002-07-18 → 2002-07-19
    Iceberg sighted in 49-14S 063-57E at 170030Z jul
  13. HYDROPAC 1281/02 · Nav aids2002-07-09 → 2002-07-10
    Casuarina point light 33-19S 115-38E unlit
  14. HYDROPAC 1232/02 · Icebergs2002-07-01 → 2002-07-08
    Iceberg sighted in 49-28S 067-35E at 290500Z jul
  15. HYDROPAC 1098/02 · Derelicts2002-06-14 → 2002-06-21
    Derelict M/V bella adrift vicinity 06-40.5N 056-14.1E at 120540Z jun
  16. HYDROPAC 1070/02 · Derelicts2002-06-09 → 2002-06-11
    M/V bella disabled due to engine casualty vicinity 06-25.5N 053-27.6E
  17. HYDROPAC 1047/02 · Icebergs2002-06-05 → 2002-06-12
    Iceberg sighted in 49-49S 068-58E at 050530Z jun
  18. HYDROPAC 1000/02 · Icebergs2002-05-29 → 2002-06-05
    Iceberg sighted in 46-12S 060-15E at 281300Z may
  19. HYDROPAC 926/02 · Other2002-05-18 → 2002-05-20
    M/V regal unity reports crewman with appendicitis requiring medical assistance in 04-45N 053-52E at 181358Z…
  20. HYDROPAC 924/02 · Debris2002-05-18 → 2002-05-25
    30 meter metal object adrift vicinity 08-37.9S 099-25.6E at 180620Z may

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