Indian Ocean

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

in force
22
last 12 months
26
since 1997
3,522
categories
15

In force now · 22

  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 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%
Missiles54315%
Nav aids46113%
Surveys37911%
Other37611%
Exercises35310%
Piracy34110%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,500 cancelled

  1. HYDROPAC 1004/19 · Derelicts2019-03-27 → 2019-03-28
    M/V blue ocean disabled and taking on water in 08-53.45S 115-20.83E
  2. HYDROPAC 997/19 · Wrecks2019-03-26 → 2019-08-23
    Dangerous wreck in 20-23.37S 057-43.81E
  3. HYDROPAC 988/19 · Nav aids2019-03-26 → 2019-06-12
    RACON at port hedland C1 light 19-59.5S 118-26.2E inoperative
  4. HYDROPAC 987/19 · Nav aids2019-03-26 → 2019-03-30
    Port hedland C1 light 19-59.5S 118-26.2E unlit
  5. HYDROPAC 952/19 · Derelicts2019-03-22 → 2019-03-25
    Derelict vessel, red and white hull, adrift in 20-15S 056-04E on 22 mar
  6. HYDROPAC 936/19 · Debris2019-03-21 → 2019-03-24
    4630 meter long seismic cables with buoy adrift in 16-12.07S 113-09.12E at 210813Z mar
  7. HYDROPAC 840/19 · Derelicts2019-03-13 → 2019-03-16
    Derelict F/V NIKELA01 adrift in vicinity 00-40N 079-22E at 130330Z mar 19
  8. HYDROPAC 825/19 · Derelicts2019-03-12 → 2019-03-14
    Derelict F/V NIKELA1 adrift in vicinity 00-56N 079-13E at 110830Z mar 19
  9. HYDROPAC 779/19 · Missiles2019-03-08 → 2019-03-22
    Hazardous operations, rocket launching 0402Z to 0519Z daily 15 mar thru 14 apr in area bound by 30-58S…
  10. HYDROPAC 744/19 · Debris2019-03-06 → 2019-03-09
    Fishing net adrift in 15-10.06S 118-01.53E at 060524Z mar
  11. HYDROPAC 726/19 · Surveys2019-03-04 → 2019-03-08
    Survey operations in progress until 15 apr by M/V polarcus asima in area bound by 35-27.7S 022-17.3E,…
  12. HYDROPAC 693/19 · Missiles2019-03-01 → 2019-03-02
    Hazardous operations, space debris 020822Z to 020905Z mar, alternate 050712Z to 050755Z mar in area bound by…
  13. HYDROPAC 676/19 · Surveys2019-02-28 → 2019-03-07
    Survey operations 01 thru 06 mar by M/V marion dufresne in area bound by 46-01S 044-20E, 46-12S 049-09E,…
  14. HYDROPAC 635/19 · Derelicts2019-02-25 → 2019-02-28
    Derelict 80 foot F/V adrift in vicinity 07-08.7S 072-30.0E at 250830Z feb
  15. HYDROPAC 588/19 · Missiles2019-02-21 → 2019-03-24
    Hazardous operations, space debris 0114Z to 0301Z daily 26 feb thru 24 mar in area bound by 24-21S 063-12E,…
  16. HYDROPAC 578/19 · Other2019-02-20 → 2019-02-21
    15 persons overboard from 37.5 meter F/V wen peng in vicinity 09-33S 082-28E at 192200Z feb
  17. HYDROPAC 576/19 · Other2019-02-19 → 2019-03-04
    Persons reported in the water in 09-24S 081-59E at 202020Z feb
  18. HYDROPAC 558/19 · Derelicts2019-02-17 → 2019-02-20
    Derelict ten meter vessel, red hull, adrift in 21-49.8S 053-49.8E at 170817Z feb
  19. HYDROPAC 541/19 · Surveys2019-02-15 → 2019-03-01
    Underwater operations in progress until further notice by M/V fugro etive in 13-49.47S 123-12.80E
  20. HYDROPAC 508/19 · Derelicts2019-02-14 → 2019-02-17
    Derelict F/V, white hull, partially submerged and adrift in vicinity 08-08S 076-11E at 131330Z feb

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