Indian Ocean

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

in force
23
last 12 months
27
since 1997
3,523
categories
15

In force now · 23

  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. 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.
  14. 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.
  15. 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.
  16. 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.
  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 in position 29-26.99S 114-52.18E is 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
    A semi-submerged mooring light buoy with a flashing white light is at 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 is supporting underwater operations in a bounded area; 2.5 nautical mile clearance requested.
  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 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%
Missiles54415%
Nav aids46113%
Surveys37911%
Other37611%
Exercises35310%
Piracy34110%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,500 cancelled

  1. HYDROPAC 1601/16 · Nav aids2016-05-31 → 2017-01-28
    RACON at maatsuyker island light 43-39.3S 146-16.4E discontinued
  2. HYDROPAC 1554/16 · Derelicts2016-05-26 → 2016-05-29
    Derelict F/V jaymali 01 adrift vicinity 02-44N 084-53E at 240445Z may
  3. HYDROPAC 1506/16 · Debris2016-05-22 → 2016-05-25
    20 meter long green object adrift in 23-43.2S 056-37.0E at 220923Z may
  4. HYDROPAC 1450/16 · Derelicts2016-05-17 → 2016-05-20
    Derelict 14 meter F/V bismiia 02 adrift in 12-38.01S 120-24.78E at 170835Z may
  5. HYDROPAC 1446/16 · Derelicts2016-05-17 → 2016-05-20
    Derelict F/V THUSHARA-08 adrift in 00-54N 084-02E at 160230Z may
  6. HYDROPAC 1439/16 · Derelicts2016-05-17 → 2016-05-17
    Derelict 14 meter F/V bismiia 02 adrift vicinity 12-35.45S 120-41.60E at 161700Z may
  7. HYDROPAC 1434/16 · Nav aids2016-05-16 → 2016-05-30
    12 buoys, yellow, fl 3 sec, established within one mile of 19-54.35S 115-16.12E
  8. HYDROPAC 1412/16 · Derelicts2016-05-13 → 2016-05-16
    Derelict vessel aquilla adrift vicinity 15-00S 057-27E
  9. HYDROPAC 1389/16 · Derelicts2016-05-12 → 2016-05-15
    Derelict F/V dilruk putha 08 adrift vicinity 02-38N 086-18E at 110400Z may
  10. HYDROPAC 1316/16 · Nav aids2016-05-06 → 2016-05-07
    Karratha dgps station 20-42.4S 116-47.0E inoperative
  11. HYDROPAC 1312/16 · Derelicts2016-05-06 → 2016-05-09
    Derelict 12 meter F/V adrift in 12-00.3S 096-43.0E at 060800Z may
  12. HYDROPAC 1311/16 · Nav aids2016-05-06 → 2016-05-06
    Karratha dgps station 20-42.4S 116-47.0E inoperative
  13. HYDROPAC 1299/16 · Nav aids2016-05-05 → 2016-06-05
    Buoy, fl 5 sec, established in 19-55.25S 115-06.53E
  14. HYDROPAC 1285/16 · Nav aids2016-05-04 → 2017-01-28
    Buoy, fl 5 sec, established in 19-55.51S 115-08.07E
  15. HYDROPAC 1233/16 · Derelicts2016-04-27 → 2016-04-30
    Derelict F/V sankaputha adrift vicinity 04-06N 078-56E at 260430Z apr
  16. HYDROPAC 1204/16 · Exercises2016-04-25 → 2016-04-27
    Gunnery exercises 260930Z to 271300Z apr in area bound by 21-12.00S 054-57.00E, 21-19.30S 054-25.54E,…
  17. HYDROPAC 1167/16 · Derelicts2016-04-21 → 2016-04-24
    Derelict 20 meter vessel, green hull, adrift in 23-48.9S 055-26.7E at 210506Z apr
  18. HYDROPAC 1096/16 · Derelicts2016-04-14 → 2016-04-17
    Derelict F/V panchalee adrift vicinity 03-23S 071-58E at 130930Z apr
  19. HYDROPAC 1003/16 · Derelicts2016-04-05 → 2016-04-08
    Derelict F/V jordan 5 adrift in 24-20S 057-48E at 031300Z apr
  20. HYDROPAC 997/16 · Derelicts2016-04-05 → 2016-04-08
    Derelict 10.3 meter vessel ocean diamond, white hull, adrift in 18-11.26S 054-04.71E at 030336Z 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.