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 404/21 · Missiles2021-02-01 → 2021-02-02
    Hazardous operations, space debris 031251Z to 031344Z feb, alternate 041230Z to 041323Z, 051208Z to 051301Z,…
  2. HYDROPAC 396/21 · Missiles2021-01-31 → 2021-02-01
    Hazardous operations, space debris 021313Z to 021406Z feb, alternate 031251Z to 031344Z feb in area bound by…
  3. HYDROPAC 395/21 · Missiles2021-01-31 → 2021-02-04
    Hazardous operations, space debris 040812Z to 040907Z feb, alternate 050751Z to 050846Z feb in area bound by…
  4. HYDROPAC 393/21 · Missiles2021-01-30 → 2021-02-01
    Hazardous operations, rocket launching 010800Z to 010930Z feb in area bound by 00-40.26N 091-03.45E,…
  5. HYDROPAC 388/21 · Missiles2021-01-30 → 2021-01-31
    Hazardous operations, space debris 011335Z to 011428Z feb, alternate 021313Z to 021406Z, and 031251Z to…
  6. HYDROPAC 367/21 · Missiles2021-01-28 → 2021-01-30
    Hazardous operations, space debris 311356Z to 311449Z jan, alternate 011335Z to 011428Z, 021313Z to 021406Z…
  7. HYDROPAC 358/21 · Surveys2021-01-28 → 2021-01-29
    Survey operations in progress until further notice by m/ jetwave jasmin in area bound by 19-17.95S…
  8. HYDROPAC 341/21 · Missiles2021-01-26 → 2021-01-28
    Hazardous operations, space debris 301418Z to 301511Z, jan, alternate 311356Z to 311449Z jan, 011335Z to…
  9. HYDROPAC 312/21 · Missiles2021-01-23 → 2021-01-26
    Hazardous operations, space debris 291439Z to 291532Z jan, alternate 301418Z to 301511Z, 311356Z to 311449Z…
  10. HYDROPAC 307/21 · Missiles2021-01-22 → 2021-01-23
    Hazardous operations, space debris 291230Z to 291348Z jan, alternate 301418Z to 301511Z, 311356Z to 311449Z…
  11. HYDROPAC 296/21 · Missiles2021-01-22 → 2021-01-22
    Hazardous operations, space debris 271522Z to 271615Z jan, alternate 281501Z to 281554Z, 291439Z to 291532Z,…
  12. HYDROPAC 279/21 · Other2021-01-21 → 2021-01-24
    Fishing gear with floats adrift in 21-44S 055-35E on 20 jan
  13. HYDROPAC 271/21 · Other2021-01-21 → 2021-01-24
    Possible yokohama fender adrift in 09-37.5S 075-13.7E at 190530Z jan
  14. HYDROPAC 264/21 · Surveys2021-01-20 → 2021-01-21
    Survey operations in progress until further notice by M/V jetwave jasmin in area bound by 19-17.95S…
  15. HYDROPAC 250/21 · Exercises2021-01-19 → 2021-01-27
    Gunnery exercises 210400Z to 271300Z jan in area bound by 21-12.00S 054-57.00E, 21-19.30S 054-25.54E,…
  16. HYDROPAC 248/21 · Surveys2021-01-19 → 2021-01-20
    Survey operations in progress until further notice by M/V jetwave jasmin in area bound by 19-17.95S…
  17. HYDROPAC 247/21 · Missiles2021-01-19 → 2021-01-20
    Hazardous operations, space debris 201501Z to 201544Z jan, alternate 211439Z to 211522Z, 221418Z to 221501Z,…
  18. HYDROPAC 221/21 · Surveys2021-01-18 → 2021-01-18
    Survey operations in progress until further notice by M/V jetwave jasmin in area bound by 21-32.68S…
  19. HYDROPAC 218/21 · Missiles2021-01-18 → 2021-01-19
    Hazardous operations, space debris 191522Z to 191605Z jan, alternate 201501Z to 201544Z jan in area bound by…
  20. HYDROPAC 183/21 · Missiles2021-01-14 → 2021-01-19
    Hazardous operations, space debris 181544Z to 181627Z jan, alternate 191522Z to 191605Z jan 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.