Indian Ocean

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

in force
21
last 12 months
28
since 1997
3,524
categories
15

In force now · 21

  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. 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. 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 is conducting underwater operations at position 20-06.96S 116-26.11E, requesting 2.5 nautical miles clearance.
  15. 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.
  16. AUSCOAST 253/26 · Nav aids2026-07-24
    Cliff Head Platform light in position 29-26.99S 114-52.18E is unlit.
  17. 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.
  18. 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.
  19. 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.
  20. 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.
  21. 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%
Missiles54515%
Nav aids46113%
Surveys37911%
Other37611%
Exercises35310%
Piracy34110%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,503 cancelled

  1. HYDROPAC 888/13 · Derelicts2013-03-30 → 2013-04-02
    Derelict 25 meter vessel, grey hull, partially submerged and adrift in 08-36.1S 105-17.3E at 302030Z mar
  2. HYDROPAC 887/13 · Derelicts2013-03-30 → 2013-04-06
    F/V disabled and adrift vicinity 20-43S 054-45E
  3. HYDROPAC 874/13 · Icebergs2013-03-29 → 2013-04-01
    Iceberg sighted in 46-25.2S 050-36.2E at 291020Z mar
  4. HYDROPAC 870/13 · Derelicts2013-03-29 → 2013-04-01
    Derelict 15 meter vessel adrift in 12-21.4S 123-27.2E at 280905Z mar
  5. HYDROPAC 858/13 · Derelicts2013-03-27 → 2013-03-30
    Derelict 20 meter vessel, red, blue and white hull, adrift in 08-54.1S 105-23.2E at 271155Z mar
  6. HYDROPAC 820/13 · Derelicts2013-03-25 → 2013-03-28
    Derelict 20 meter vessel, white and blue hull, adrift vicinity 07-54.5S 105-02.6E at 250120Z mar
  7. HYDROPAC 815/13 · Other2013-03-24 → 2013-03-26
    18 meter long object partially submerged and adrift in 10-19.36S 105-37.88E at 241115Z mar
  8. HYDROPAC 812/13 · Icebergs2013-03-24 → 2013-03-27
    Iceberg reported in 43-13S 048-07E on 24 mar
  9. HYDROPAC 811/13 · Other2013-03-24 → 2013-03-24
    Vessel requesting assistance in 07-38.23S 105-18.23E at 240926Z mar
  10. HYDROPAC 810/13 · Other2013-03-24 → 2013-03-24
    Vessel requesting assistance in 08-07.37S 105-13.60E
  11. HYDROPAC 807/13 · Exercises2013-03-23 → 2013-04-08
    Gunnery exercises 0200Z to 1900Z daily 25 mar thru 05 apr and 08 apr in area bound by 21-12.0S 054-57.0E,…
  12. HYDROPAC 796/13 · Other2013-03-22 → 2013-03-25
    19 meter long object partially submerged and adrift in 10-16S 105-40E at 220605Z mar
  13. HYDROPAC 791/13 · Icebergs2013-03-21 → 2013-03-24
    Icebergs sighted on 21 mar
  14. HYDROPAC 790/13 · Icebergs2013-03-21 → 2013-03-24
    Iceberg sighted in 44-31S 050-53E at 210400Z mar
  15. HYDROPAC 789/13 · Icebergs2013-03-21 → 2013-03-24
    Iceberg sighted in 45-10S 050-52E at 210400Z mar
  16. HYDROPAC 724/13 · Derelicts2013-03-14 → 2013-03-17
    Vessel partially submerged and adrift in 11-33.3S 122-23.5E at 140410Z mar
  17. HYDROPAC 719/13 · Other2013-03-14 → 2013-03-14
    Vessel requesting assistance in 09-46.26S 105-45.33E at 140540Z mar
  18. HYDROPAC 709/13 · Wrecks2013-03-13 → 2013-03-13
    Vessel sank in 11-44.25S 122-12.73E at 130400Z mar
  19. HYDROPAC 641/13 · Debris2013-03-05 → 2013-03-08
    Six meter long orange buoy adrift vicinity 29-50.5S 114-20.8E at 041940Z mar
  20. HYDROPAC 606/13 · Derelicts2013-03-01 → 2013-03-04
    Derelct vessel, white hull, partially submerged and adrift in 25-00.5S 052-04.5E on 28 feb

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