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 258/17 · Icebergs2017-01-23 → 2017-01-26
    Iceberg reported in vicinity 48-55.1S 065-31.6E at 230001Z jan
  2. HYDROPAC 226/17 · Derelicts2017-01-20 → 2017-02-08
    F/V GREEN-01 disabled and adrift due to engine failure in 04-25N 079-45E at 200900Z jan
  3. HYDROPAC 222/17 · Exercises2017-01-20 → 2017-01-26
    Gunnery exercises 251100Z to 251500Z, 261000Z to 261300Z and 261700Z to 262000Z jan in area bound by…
  4. HYDROPAC 105/17 · Other2017-01-10 → 2017-01-13
    F/V marco polo 2 on fire in 00-47.14N 067-45.33E
  5. HYDROPAC 76/17 · Derelicts2017-01-07 → 2017-01-10
    30 meter F/V, green hull, partially submerged and adrift in 12-56.31S 108-37.74E at 070909Z jan
  6. HYDROPAC 4028/16 · Derelicts2016-12-28 → 2016-12-31
    Derelict F/V jeewantha putha, adrift in 01-43N 079-05E at 280330Z dec
  7. HYDROPAC 4002/16 · Other2016-12-26 → 2016-12-28
    F/V shanuka 08 reports crewman requiring medical assistance in 00-20N 090-20E at 260445Z dec
  8. HYDROPAC 3980/16 · Derelicts2016-12-23 → 2016-12-26
    Derelict M/V hardanger adrift in 30-30S 037-14E
  9. HYDROPAC 3975/16 · Derelicts2016-12-23 → 2016-12-26
    Derelict S/V seya baba adrift vicinity 00-29S 079-20E at 221230Z dec
  10. HYDROPAC 3962/16 · Derelicts2016-12-22 → 2016-12-23
    M/V hardanger disabled and adrift in 30-30S 037-14E
  11. HYDROPAC 3958/16 · Missiles2016-12-22 → 2016-12-27
    Hazardous operations 0300Z to 0700Z daily 26 and 27 dec in areas bound by: a. 20-48.36N 087-02.58E,…
  12. HYDROPAC 3926/16 · Derelicts2016-12-19 → 2016-12-22
    Derelict 25 meter F/V, green hull, partially submerged and adrift in 12-47.2S 114-45.9E at 190300Z dec
  13. HYDROPAC 3870/16 · Icebergs2016-12-12 → 2016-12-15
    Iceberg in 49-25.5S 066-25.9E
  14. HYDROPAC 3854/16 · Nav aids2016-12-11 → 2016-12-11
    Karratha dgps station 20-42.4S 116-47.0E inoperative
  15. HYDROPAC 3849/16 · Cable ops2016-12-11 → 2016-12-25
    Cable laying operations 16 thru 24 dec by cableship decisive along tracklines joining: a. 46-25.57S…
  16. HYDROPAC 3848/16 · Derelicts2016-12-11 → 2016-12-14
    Derelict 18 meter S/V bastide otio, white hull, adrift in 44-07.3S 054-08.5E at 101300Z dec
  17. HYDROPAC 3810/16 · Surveys2016-12-08 → 2017-01-06
    Underwater operations in progress until further notice by M/V bhagwan dryden in vicinity 19-55.46S 115-23.02E
  18. HYDROPAC 3798/16 · Derelicts2016-12-07 → 2016-12-28
    18 meter S/V bastide otio, white hull, disabled and adrift in 44-19.5S 053-45.6E at 070050Z dec
  19. HYDROPAC 3728/16 · Missiles2016-12-02 → 2016-12-08
    Hazardous operations 0430Z to 0830Z daily 07 thru 09 dec: a. within ten miles of 13-43.9N 080-14.2E
  20. HYDROPAC 3710/16 · Missiles2016-12-01 → 2016-12-05
    Hazardous operations 1603Z to 1720Z daily 05 dec thru 05 jan 17 in area bound by 14-44S 089-50E, 14-49S…

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