Indian Ocean

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

in force
23
last 12 months
22
since 1997
3,517
categories
15

In force now · 23

  1. AUSCOAST 275/26 · Surveys2026-08-16
    Drill rig transocean endurance / V7A7398 / 538010768 in position 19-31.18S 116-06.65E 2.5 nm clearance…
  2. NAVAREA X 94/26 · Missiles2026-08-15
    NAVAREA X 94/26
  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
    4 X yellow surface buoys, fl y 5 sec, established within 0.3NM 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 / H9YT / 373335000 conducting underwater operations in an area bounded…
  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 FCS/995031119 in position 19-52.73S 114-36.50E 2.5 nm clearance requested
  11. NAVAREA X 91/26 · Missiles2026-08-05
    NAVAREA X 91/26
  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 / vhco / 503010110 conducting underwater operations in position…
  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
    Special purpose vessel fugro kwilena / MLOV8 / 503147420 conducting underwater operations in an area bounded…
  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 Q1754-8 in position 29-26.99S 114-52.18E 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
    Semi-submerged mooring lightbuoy fl.w in 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 565905000 supporting underwater operations in an area bounded by…
  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 565905000 supporting underwater operations in an area bounded by…
  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
    Semi-submerged mooring lightbuoy fl.w in 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%
Other37511%
Exercises35310%
Piracy34010%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,494 cancelled

  1. HYDROPAC 1147/24 · Other2024-04-10 → 2024-04-13
    Fishing gear, marked by orange floats, adrift in 20-39.00S 055-16.00E at 091200Z apr
  2. HYDROPAC 1139/24 · Nav aids2024-04-09 → 2024-04-16
    Pelsaert island light 28-59.11S 113-57.74E unlit
  3. HYDROPAC 1118/24 · Missiles2024-04-08 → 2024-04-15
    Hazardous operations, space debris 0258Z to 0727Z daily 13 thru 19 apr in area bound by 08-53.00S…
  4. HYDROLANT 733/24 · Missiles2024-04-08 → 2024-04-15
    Hazardous operations, space debris 0258Z to 0727Z daily 13 thru 19 apr in area bound by 08-53.00S…
  5. HYDROLANT 728/24 · Missiles2024-04-07 → 2024-04-08
    Hazardous operations, space debris 0258Z to 0727Z daily 13 thru 19 apr in area bound by 08-53.00S…
  6. HYDROPAC 1109/24 · Missiles2024-04-07 → 2024-04-08
    Hazardous operations, space debris 0258Z to 0727Z daily 13 thru 19 apr in area bound by 08-53.00S…
  7. HYDROPAC 1103/24 · Other2024-04-06 → 2024-04-09
    Fad with rope adrift in 09-49.68S 104-57.87E at 060739Z apr
  8. HYDROPAC 1087/24 · Surveys2024-04-05 → 2026-08-14
    Underwater operations by vessel DLV 2000 in eastern Indian Ocean at 19-54.60S 113-14.80E until further notice. Three mile berth requested.
  9. HYDROPAC 1086/24 · Missiles2024-04-05 → 2024-04-16
    Hazardous operations, space debris 0558Z to 1027Z daily 10 thru 16 apr in area bound by 08-53.00S…
  10. HYDROLANT 711/24 · Missiles2024-04-05 → 2024-04-16
    Hazardous operations, space debris 0558Z to 1027Z daily 10 thru 16 apr in area bound by 08-53.00S…
  11. HYDROPAC 1084/24 · Cable ops2024-04-04 → 2024-04-11
    Pipeline operations in progress until further notice by M/V castorone along trackline joining 20-10.80S…
  12. HYDROPAC 1083/24 · Cable ops2024-04-04 → 2024-04-04
    Pipeline operations in progress by M/V castorone along trackline joining 20-10.80S 116-07.10E, 20-10.50S…
  13. HYDROPAC 1060/24 · Missiles2024-04-03 → 2024-04-09
    Hazardous operations, space debris 0127Z to 0219Z daily 08 thru 14 apr in area bound by 40-52.00S…
  14. HYDROPAC 1059/24 · Missiles2024-04-03 → 2024-04-03
    Hazardous operations, space debris 080001Z to 141200Z apr in area bound by 40-52.00S 089-52.00E, 42-42.00S…
  15. HYDROPAC 1039/24 · Surveys2024-03-31 → 2026-08-14
    Underwater operations by vessel Bravenes are underway in the Eastern Indian Ocean off Australia along a trackline until further notice; one mile berth requested.
  16. HYDROPAC 1036/24 · Missiles2024-03-31 → 2024-04-11
    Hazardous operations, space debris 0541Z to 1241Z daily 05 thru 11 apr in area bound by 08-53.00S…
  17. HYDROLANT 658/24 · Missiles2024-03-31 → 2024-04-11
    Hazardous operations, space debris 0541Z to 1241Z daily 05 thru 11 apr in area bound by 08-53.00S…
  18. HYDROPAC 1022/24 · Derelicts2024-03-29 → 2024-04-01
    Derelict F/V shaeng fan no
  19. HYDROPAC 1019/24 · Other2024-03-29 → 2024-03-29
    F/V shaeng fan no
  20. HYDROPAC 1017/24 · Cable ops2024-03-29 → 2024-04-04
    Cable operations in progress until further notice by M/V castorone along trackline joining 20-12.10S…

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