Indian Ocean

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

in force
23
last 12 months
22
since 1997
3,518
categories
15

In force now · 23

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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.
  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 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.
  16. AUSCOAST 255/26 · Surveys2026-07-27
    Vessel Fugro Kwilena is conducting underwater operations in an area bounded by 19-56.69 S to 20-26.06 S and 114-45.09 E to 115-30.10 E, requesting 1.5 nautical miles clearance.
  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%
Surveys37711%
Other37611%
Exercises35310%
Piracy34010%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,495 cancelled

  1. HYDROPAC 2542/21 · Icebergs2021-09-09 → 2021-09-12
    Iceberg reported in 49-39.2S 066-31.0E on 09 sep
  2. HYDROPAC 2523/21 · Missiles2021-09-07 → 2021-09-11
    Hazardous operations, rocket launching 1524Z to 1911Z daily 10 and 11 sep in area bound by 10-21N 062-11E,…
  3. HYDROPAC 2489/21 · Surveys2021-09-02 → 2021-10-07
    Underwater operations in progress until further notice by M/V seven oceanic in area bound by 20-02.0S…
  4. HYDROPAC 2469/21 · Exercises2021-08-30 → 2021-09-02
    Gunnery exercises 020500Z to 020800Z sep in area bound by 21-19.30S 054-25.54E, 21-12.00S 054-57.00E,…
  5. HYDROPAC 2468/21 · Exercises2021-08-30 → 2021-09-01
    Gunnery exercises 011030Z to 011300Z sep in area bound by 21-19.30S 054-25.54E, 21-12.00S 054-57.00E,…
  6. HYDROPAC 2467/21 · Exercises2021-08-30 → 2021-09-01
    Gunnery exercises 010400Z to 010600Z sep in area bound by 21-19.30S 054-25.54E, 21-12.00S 054-57.00E,…
  7. HYDROPAC 2457/21 · Exercises2021-08-28 → 2021-08-31
    Gunnery exercises 301000Z to 301300Z and 310400Z to 310700Z aug in area bound by 21-12.00S 054-57.00E,…
  8. HYDROPAC 2455/21 · Missiles2021-08-28 → 2021-08-29
    Hazardous operations, space debris 290754Z to 290828Z aug, alternate 300732Z to 300806Z, 310706Z to 310740Z…
  9. HYDROPAC 2445/21 · Exercises2021-08-27 → 2021-08-31
    Gunnery exercises 301000Z to 301300Z and 310400Z to 310700Z aug in area bound by 21-12.00S 054-57.00E,…
  10. HYDROPAC 2435/21 · Derelicts2021-08-26 → 2021-08-29
    Nine meter vessel adrift in vicinity 07-21S 100-30E at 260550Z aug
  11. HYDROPAC 2416/21 · Exercises2021-08-24 → 2021-08-27
    Gunnery exercises 270330Z to 270700Z aug in area bound by 21-12.00S 054-57.00E, 21-19.30S 054-25.54E,…
  12. HYDROPAC 2412/21 · Exercises2021-08-23 → 2021-08-26
    Gunnery exercises 260330Z to 260800Z aug in area bound by 21-12.00S 054-57.00E, 21-19.30S 054-25.54E,…
  13. HYDROPAC 2410/21 · Derelicts2021-08-23 → 2021-08-28
    F/V jui der number 16 adrift and on fire in 30-59S 039-27E
  14. HYDROPAC 2405/21 · Missiles2021-08-23 → 2021-08-28
    Hazardous operations, space debris 280817Z to 280851Z aug, alternate 290754Z to 290828Z, 300732Z to 300806Z,…
  15. HYDROPAC 2311/21 · Missiles2021-08-12 → 2021-08-17
    Hazardous operations, space debris 0357Z to 0514Z daily 17 aug thru 16 sep in area bound by 30-38S 087-27E,…
  16. HYDROPAC 2282/21 · Nav aids2021-08-09 → 2021-08-12
    Browse island light 14-06.5S 123-32.9E unreliable
  17. HYDROPAC 2254/21 · Exercises2021-08-06 → 2021-08-09
    Gunnery exercises 090800Z to 091400Z aug in area bound by 21-12.00S 054-57.00E, 21-26.00S 055-02.30E,…
  18. HYDROPAC 2238/21 · Nav aids2021-08-05 → 2022-02-03
    Ponta do ouro light 26-51-24S 032-53-18E unlit
  19. HYDROPAC 2228/21 · Missiles2021-08-04 → 2021-08-06
    Hazardous operations, space debris 081603Z to 081656Z aug in area bound by 24-10S 078-38E, 21-03S 082-56E,…
  20. HYDROPAC 2225/21 · Missiles2021-08-04 → 2021-08-04
    Hazardous operations, space debris 071626Z to 071719Z aug, alternate 081603Z to 081656Z aug in area bound by…

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