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 1572/24 · Derelicts2024-05-10 → 2024-05-13
    Derelict vessel adrift in 18-00.00S 055-00.00E
  2. HYDROPAC 1562/24 · Derelicts2024-05-10 → 2024-05-10
    Derelict vessel adrift in 18-00.00S 055-00.00E
  3. HYDROPAC 1558/24 · Cable ops2024-05-10 → 2026-08-14
    Cable operations are in progress by vessel Castorone along a trackline from 20-03.20S 115-28.80E to 19-54.60S 115-12.60E; a one-mile berth is requested.
  4. HYDROPAC 1553/24 · Missiles2024-05-10 → 2024-05-21
    Hazardous operations, space debris 172249Z to 172351Z may, alternate 182224Z to 182326Z and 212113Z to…
  5. HYDROPAC 1533/24 · Surveys2024-05-08 → 2024-05-10
    Underwater operations in progress until further notice by M/V deep orient in area bound by 21-08.46S…
  6. HYDROPAC 1529/24 · Debris2024-05-07 → 2024-05-10
    Object adrift in vicinity 37-27.6S 040-03.7E
  7. HYDROPAC 1465/24 · Missiles2024-05-03 → 2024-05-10
    Hazardous operations, space debris 070309Z to 070401Z may, alternate 080246Z to 080338Z and 110135Z to…
  8. HYDROPAC 1458/24 · Cable ops2024-05-02 → 2024-05-10
    Cable operations in progress until further notice by M/V castorone along trackline joining 20-04.90S…
  9. HYDROPAC 1434/24 · Nav aids2024-05-01 → 2026-08-14
    Radar beacon at Imperieuse Reef Light (17-31.32S 118-57.18E) is inoperative.
  10. HYDROPAC 1398/24 · Surveys2024-04-28 → 2024-05-08
    Underwater operations in progress until further notice by M/V deep orient in area bound by 21-27.09S…
  11. HYDROPAC 1388/24 · Nav aids2024-04-27 → 2024-04-29
    Pelsaert island light 28-59.13S 113-57.74E unlit
  12. HYDROPAC 1378/24 · Cable ops2024-04-26 → 2024-05-02
    Cable operations in progress until further notice by M/V castorone along trackline joining 20-06.69S…
  13. HYDROPAC 1377/24 · Other2024-04-26 → 2024-04-29
    Orange fad with rope adrift in 14-52.37S 120-54.80E at 260058Z apr
  14. HYDROPAC 1342/24 · Missiles2024-04-24 → 2024-06-01
    Hazardous operations, space debris 0001Z to 2359Z daily 27 apr thru 31 may in area bound by 08-53.00S…
  15. HYDROLANT 869/24 · Missiles2024-04-24 → 2024-06-01
    Hazardous operations, space debris 0001Z to 2359Z daily 27 apr thru 31 may in area bound by 08-53.00S…
  16. HYDROPAC 1324/24 · Other2024-04-23 → 2024-04-26
    Fad with rope adrift in 17-10.68S 119-17.57E at 230430Z apr
  17. HYDROPAC 1322/24 · Surveys2024-04-23 → 2024-05-07
    Underwater operations in progress until further notice by M/V limitless in area bound by 21-26.47S…
  18. HYDROPAC 1321/24 · Surveys2024-04-22 → 2026-08-14
    Survey operations by vessel Skandi Hercules are in progress in the Eastern Indian Ocean off Australia until further notice; a three-mile berth is requested.
  19. HYDROPAC 1312/24 · Other2024-04-22 → 2024-04-25
    Fad with rope adrift in 15-06.65S 121-07.30E at 220723Z apr
  20. HYDROPAC 1289/24 · Cable ops2024-04-19 → 2024-04-26
    Pipeline operations in progress until further notice by M/V castorone along trackline joining 20-09.45S…

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