Indian Ocean

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

in force
23
last 12 months
23
since 1997
3,519
categories
15

In force now · 23

  1. 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.
  2. 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.
  3. 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.
  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. 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.
  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 2157/26 · Surveys2026-07-27
    Underwater operations are underway by the vessel Fugro Kwilena in the eastern Indian Ocean off Australia until further notice. A two-mile berth is requested.
  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%
Missiles54215%
Nav aids46113%
Surveys37811%
Other37611%
Exercises35310%
Piracy34010%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,496 cancelled

  1. HYDROPAC 594/21 · Missiles2021-02-20 → 2021-02-20
    Hazardous operations, space debris 250933Z to 251030Z feb, alternate 260911Z to 261008Z, 270850Z to 270947Z,…
  2. HYDROPAC 546/21 · Missiles2021-02-16 → 2021-02-17
    Hazardous operations, space debris 190706Z to 190759Z, alternate 200645Z to 200738Z, 210623Z to 210716Z and…
  3. HYDROPAC 543/21 · Surveys2021-02-16 → 2023-02-24
    Salvage operations in progress until further notice by M/V wakashio in area bound by 20-26.1S 057-43.1E,…
  4. HYDROPAC 526/21 · Missiles2021-02-15 → 2021-02-16
    Southern indian ocean 1. hazardous operations, space debris 160555Z to 160649Z feb, alternate 170533Z to…
  5. HYDROPAC 517/21 · Nav aids2021-02-14 → 2021-02-16
    Rottnest island light 32-00.4S 115-30.3E unlit
  6. HYDROPAC 515/21 · Debris2021-02-14 → 2021-02-17
    15 meter long rope with buoy adrift in 09-44.2S 104-11.5E at 140322Z feb
  7. HYDROPAC 511/21 · Exercises2021-02-13 → 2021-02-16
    Gunnery exercise 160200Z to 162000Z feb in area bound by 21-12.00S 054-57.00E, 21-26.00S 055-02.30E,…
  8. HYDROPAC 510/21 · Missiles2021-02-13 → 2021-02-16
    Hazardous operations, space debris 170749Z to 170842Z feb, alternate 180728Z to 180821Z, 190706Z to 190759Z,…
  9. HYDROPAC 507/21 · Missiles2021-02-13 → 2021-02-16
    Southern indian ocean 1. hazardous operations, space debris 150616Z thru 150710Z feb, alternate 160555Z to…
  10. HYDROPAC 504/21 · Exercises2021-02-12 → 2021-02-16
    Gunnery exercises 160200Z to 162000Z feb in area bound by 21-12.00S 054-57.00E, 21-19.30S 054-25.54E,…
  11. HYDROPAC 496/21 · Missiles2021-02-11 → 2021-02-13
    Hazardous operations, space debris 160811Z to 160904Z feb, alternate 170749Z to 170842Z, 180728Z to 180821Z,…
  12. HYDROPAC 494/21 · Missiles2021-02-11 → 2021-02-11
    Hazardous operations, space debris 160811Z to 160904Z feb, alternate 170749Z to 170842Z feb in area bound by…
  13. HYDROPAC 463/21 · Missiles2021-02-09 → 2021-02-16
    Hazardous operations, space debris 140638Z thru 140732Z feb, alternate 150616Z to 150710Z and 160555Z to…
  14. HYDROPAC 462/21 · Nav aids2021-02-09 → 2021-02-16
    North west cape light 21-48-23S 114-09-37E unreliable
  15. HYDROPAC 448/21 · Missiles2021-02-07 → 2021-02-08
    Hazardous operations, space debris 120721Z to 120815Z feb, alternate 130659Z to 130753 feb in area bound by…
  16. HYDROPAC 444/21 · Missiles2021-02-07 → 2021-02-09
    Hazardous operations, space debris 120721Z to 120815Z feb, alternate 130659Z to 130753Z, 140638Z to 140732Z,…
  17. HYDROPAC 428/21 · Missiles2021-02-04 → 2021-02-05
    Hazardous operations, space debris 071125Z to 071218Z feb, alternate 081104Z to 081157Z and 091042Z to…
  18. HYDROPAC 422/21 · Surveys2021-02-04 → 2021-02-04
    Survey operations in progress until 03 mar by M/V fugro mapper towing 150 meter long cable in area bound by…
  19. HYDROPAC 414/21 · Missiles2021-02-03 → 2021-02-04
    Hazardous operations, space debris 051208Z to 051301Z feb, alternate 061147Z to 061240Z, 071125Z to 071218Z,…
  20. HYDROPAC 408/21 · Missiles2021-02-02 → 2021-02-03
    Hazardous operations, space debris 041230Z to 041323Z feb, alternate 051208Z to 051301Z, 061147Z to 061240Z,…

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