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 1696/19 · Derelicts2019-05-22 → 2019-06-07
    F/V disabled and adrift in 03-29S 087-36E at 211830Z may
  2. HYDROPAC 1694/19 · Debris2019-05-21 → 2019-05-24
    Fishing gear adrift in 14-02.7S 120-08.4E at 210856Z may
  3. HYDROPAC 1687/19 · Missiles2019-05-20 → 2019-05-24
    Hazardous operations, space debris 240453Z to 240644Z may, alternate 250453Z to 250644Z may in area bound by…
  4. HYDROPAC 1686/19 · Other2019-05-20 → 2019-05-21
    Steel cable adrift in 14-01.5S 120-06.2E at 200833Z may
  5. HYDROPAC 1674/19 · Debris2019-05-18 → 2019-05-21
    Fishing gear adrift in 14-01.20S 120-04.95E at 180418Z may
  6. HYDROPAC 1658/19 · Other2019-05-16 → 2019-05-19
    Large navigation mark, red, adrift in 18-34.7S 117-20.2E at 162100UTC apr
  7. HYDROPAC 1649/19 · Missiles2019-05-16 → 2019-05-17
    Hazardous operations, space debris 170453Z to 170644Z may, alternate 180453Z to 180644Z may in area bound by…
  8. HYDROPAC 1642/19 · Containers2019-05-15 → 2019-05-18
    Container adrift in 04-13S 047-04E at 131107Z may
  9. HYDROPAC 1594/19 · Missiles2019-05-11 → 2019-05-16
    Hazardous operations, space debris 160453Z to 160644Z, alternate 170453Z to 170644Z may in area bound by…
  10. HYDROPAC 1568/19 · Derelicts2019-05-09 → 2019-05-12
    Derelict F/V WOSHINI1 adrift in vicinity 00-13N 077-25E at 090330Z may
  11. HYDROPAC 1527/19 · Derelicts2019-05-06 → 2019-05-09
    Derelict F/V janaka malli adrift in vicinity 03-42N 080-02E at 051130Z may
  12. HYDROPAC 1516/19 · Derelicts2019-05-04 → 2019-05-07
    F/V dimosh putha adrift in 01-37N 078-04E at 041130Z may
  13. HYDROPAC 1475/19 · Derelicts2019-05-02 → 2019-05-02
    Derelict vessel gold gemini adrift in 30-50S 037-46E
  14. HYDROPAC 1457/19 · Derelicts2019-04-30 → 2019-05-02
    Vessel gold gemini, disabled and adrift in 30-29S 038-05E
  15. HYDROPAC 1453/19 · Missiles2019-04-30 → 2019-05-04
    Hazardous operations, space debris 030743Z to 030832Z may, alternate 040720Z to 040809Z may in area bound by…
  16. HYDROPAC 1445/19 · Wrecks2019-04-30 → 2019-05-16
    F/V diego star 3 sank in 20-09.13S 057-28.02E
  17. HYDROPAC 1441/19 · Missiles2019-04-29 → 2019-05-01
    Hazardous operations, space debris 010831Z to 010921Z may in area bound by 29-25S 088-46E, 27-50S 089-47E,…
  18. HYDROPAC 1439/19 · Wrecks2019-04-29 → 2020-06-05
    Obstruction marked by buoy, yellow, fl w 3 sec, in area within two miles of 19-55.25S 115-07.98E
  19. HYDROPAC 1433/19 · Debris2019-04-28 → 2019-05-01
    Ten meter buoy adrift in 03-23N 056-11E at 281300 apr
  20. HYDROPAC 1428/19 · Debris2019-04-27 → 2019-04-28
    Ten meter buoy adrift in 03-34N 056-40E at 270300 apr

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