Indian Ocean

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

in force
22
last 12 months
28
since 1997
3,524
categories
15

In force now · 22

  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. 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 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.
  17. AUSCOAST 253/26 · Nav aids2026-07-24
    Cliff Head Platform light in position 29-26.99S 114-52.18E is unlit.
  18. 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.
  19. 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.
  20. 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.
  21. 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.
  22. 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%
Missiles54515%
Nav aids46113%
Surveys37911%
Other37611%
Exercises35310%
Piracy34110%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,502 cancelled

  1. HYDROPAC 2264/15 · Derelicts2015-07-09 → 2015-07-15
    F/V NAVINA-02 disabled and adrift vicinity 00-07S 078-06E at 080515Z jul
  2. HYDROPAC 2249/15 · Derelicts2015-07-08 → 2015-07-11
    Derelict seven meter vessel, white hull, adrift vicinity 27-40.9S 112-16.2E at 080518Z jul
  3. HYDROPAC 2238/15 · Missiles2015-07-06 → 2015-07-12
    Hazardous operations 1615Z to 1815Z daily 10 thru 12 jul: a. within ten miles of 13-43.9N 080-14.2E
  4. HYDROPAC 2165/15 · Icebergs2015-06-28 → 2015-07-01
    Iceberg sighted in 45-15.5S 035-28.4E
  5. HYDROPAC 2155/15 · Derelicts2015-06-27 → 2015-06-30
    Derelict 40 foot vessel seafox II partially submerged and adrift in 26-53.3S 113-31.6E at 271343Z jun
  6. HYDROPAC 2065/15 · Missiles2015-06-23 → 2015-06-29
    Space debris
  7. HYDROPAC 2012/15 · Nav aids2015-06-19 → 2015-06-23
    North west cape light 21-48.4S 114-09.6E unlit
  8. HYDROPAC 2002/15 · Missiles2015-06-19 → 2015-06-19
    Space debris
  9. HYDROPAC 1952/15 · Derelicts2015-06-15 → 2015-06-18
    Derelict ten meter lifeboat, orange hull, adrift vicinity 23-35.9S 051-57.5E at 150530Z jun
  10. HYDROPAC 1892/15 · Debris2015-06-10 → 2015-06-13
    Two mile long fishing line with two buoys adrift in 21-10S 054-57E
  11. HYDROPAC 1891/15 · Derelicts2015-06-10 → 2015-06-13
    Derelict lifeboat adrift in 24-35.6S 053-10.9E
  12. HYDROPAC 1839/15 · Cable ops2015-06-05 → 2015-06-08
    Seismic survey 06 thru 12 jun by M/V cgg alize towing four five mile long cables in area bound by 12-38S…
  13. HYDROPAC 1758/15 · Derelicts2015-05-29 → 2015-06-01
    Derelict 13 meter S/V adrift in 17-08.0S 078-23.4E at 290200Z may
  14. HYDROPAC 1730/15 · Derelicts2015-05-27 → 2015-05-27
    M/V zoulfecar I disabled and adrift in 09-31.21S 041-44.23E
  15. HYDROPAC 1722/15 · Derelicts2015-05-25 → 2015-05-28
    Derelict vessel adrift vicinity 27-26.4S 064-30.0E on 22 may
  16. HYDROPAC 1719/15 · Surveys2015-05-25 → 2015-06-24
    Underwater operations in progress until further notice by M/V go phoenix with submersible in area bound by…
  17. HYDROPAC 1667/15 · Surveys2015-05-21 → 2015-06-24
    Underwater operations in progress until further notice by M/V fugro discovery in area bound by 34-50S…
  18. HYDROPAC 1654/15 · Nav aids2015-05-20 → 2015-05-29
    Imperieuse reef light 17-31.1S 118-56.9E and RACON unreliable
  19. HYDROPAC 1602/15 · Missiles2015-05-15 → 2015-05-21
    Space debris
  20. HYDROPAC 1556/15 · Derelicts2015-05-11 → 2015-05-14
    Derelict vessel middleton, green hull, adrift in 09-43.5S 041-46.0E

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