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 686/15 · Nav aids2015-02-28 → 2015-05-02
    Foul bay south end light 34-15.0S 115-02.0E unlit
  2. HYDROPAC 591/15 · Nav aids2015-02-20 → 2015-02-22
    Port hedland C1 light 19-59.6S 118-26.1E unlit
  3. HYDROPAC 590/15 · Nav aids2015-02-19 → 2016-05-02
    Triton buoy 18 established in 01-37.06S 089-59.02E
  4. HYDROPAC 571/15 · Debris2015-02-18 → 2015-02-21
    12 meter long fishing net adrift in 12-52.91S 119-02.98E at 180625Z feb
  5. HYDROPAC 545/15 · Derelicts2015-02-15 → 2015-02-18
    Derelict eight meter vessel adrift in 13-12.5S 119-02.7E at 151200Z feb
  6. HYDROPAC 536/15 · Derelicts2015-02-14 → 2015-02-17
    Derelict eight meter vessel adrift in 13-11.04S 119-02.50E at 141100Z feb
  7. HYDROPAC 528/15 · Surveys2015-02-13 → 2015-05-30
    Underwater operations in progress until further notice by M/V nor australis in 19-58.13S 115-12.46E
  8. HYDROPAC 523/15 · Derelicts2015-02-13 → 2015-02-16
    Derelict eight meter vessel adrift in 13-10.00S 119-02.39E at 131200Z feb
  9. HYDROPAC 494/15 · Other2015-02-11 → 2015-02-12
    M/V saldanha reports crewman requiring medical assistance vicinity 10-29S 078-32E at 111315Z
  10. HYDROPAC 430/15 · Missiles2015-02-06 → 2015-02-11
    Hazardous operations 11 feb thru 11 mar: a. 1248Z to 1647Z daily in area bound by 03-08S 075-53E, 03-43S…
  11. HYDROPAC 393/15 · Icebergs2015-02-03 → 2015-02-06
    Iceberg reported vicinity 46-38S 056-21E
  12. HYDROPAC 380/15 · Cable ops2015-02-02 → 2015-02-28
    Seismic survey in progress until 27 feb by M/V geo hindsagar towing 8400 meter long cable in area bound by…
  13. HYDROPAC 334/15 · Surveys2015-01-29 → 2015-02-14
    Underwater operations in progress until further notice by M/V fugro supporter in area bound by 38-06S…
  14. HYDROPAC 307/15 · Icebergs2015-01-28 → 2015-01-31
    Ice
  15. HYDROPAC 306/15 · Icebergs2015-01-28 → 2015-01-31
    Ice
  16. HYDROPAC 285/15 · Missiles2015-01-26 → 2015-02-02
    Hazardous operations 310230Z to 310630Z jan, 0400Z to 0800Z daily 01 and 02 feb in areas bound by: a.…
  17. HYDROPAC 263/15 · Icebergs2015-01-23 → 2015-01-26
    Iceberg reported vicinity 46-50.34S 050-54.80E
  18. HYDROPAC 243/15 · Icebergs2015-01-22 → 2015-01-25
    Iceberg reported vicinity 46-50.34S 050-54.80E
  19. HYDROPAC 202/15 · Cable ops2015-01-19 → 2015-04-01
    Seismic survey in progress until 31 mar by M/V amazon warrior towing 14 8400 meter long cables in area bound…
  20. HYDROPAC 184/15 · Icebergs2015-01-18 → 2015-01-21
    Iceberg reported vicinity 47-24.25S 052-49.76E

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