Indian Ocean

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

in force
23
last 12 months
22
since 1997
3,518
categories
15

In force now · 23

  1. 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.
  2. 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.
  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
    Four yellow surface buoys with flashing yellow light every 5 seconds established within 0.3 nautical miles 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 conducting underwater operations in area bounded by 19-12S to 19-21S and 116-30E to 116-50E, 0.5 nautical miles clearance requested.
  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 is at position 19-52.73S 114-36.50E, requesting a 2.5 nautical mile clearance.
  11. 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.
  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 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
    Vessel Fugro Kwilena is conducting underwater operations in an area bounded by 19-56.69 S to 20-26.06 S and 114-45.09 E to 115-30.10 E, requesting 1.5 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%
Missiles54215%
Nav aids46113%
Surveys37711%
Other37611%
Exercises35310%
Piracy34010%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,495 cancelled

  1. HYDROPAC 3322/21 · Derelicts2021-11-17 → 2021-11-20
    Derelict M/V viva 109 adrift in vicinity 00-03.95N 089-31.10E at 161600Z nov
  2. HYDROPAC 3306/21 · Derelicts2021-11-16 → 2021-11-17
    Derilict M/V viva 109 adrift in vicinity 00-08.58N 088-58.78E
  3. HYDROPAC 3303/21 · Nav aids2021-11-16 → 2021-11-17
    Cape leveque light 16-23.8S 122-55.7E unlit
  4. HYDROPAC 3294/21 · Derelicts2021-11-15 → 2021-11-16
    M/V VIVA109 disabled and adrift due to engine failure in 00-27.43N 087-28.00E on 14 nov
  5. HYDROPAC 3271/21 · Derelicts2021-11-12 → 2021-11-19
    M/V falbala disabled and sailing without navigational lights
  6. HYDROLANT 2766/21 · Icebergs2021-11-09 → 2021-11-12
    Iceberg reported in: a. 50-23.10S 068-30.91E 2. cancel this msg 121552Z nov 21
  7. HYDROPAC 3222/21 · Icebergs2021-11-09 → 2021-11-12
    Iceberg reported in vicinity 50-23.10S 068-30.91E
  8. HYDROPAC 3216/21 · Debris2021-11-09 → 2021-11-12
    20 meter ghost net adrift in vicinity 12-59.28S 122-04.10E at 090440Z nov
  9. HYDROPAC 3193/21 · Icebergs2021-11-07 → 2021-11-10
    Iceberg reported in 49-39.2S 066-31.0E
  10. HYDROPAC 3188/21 · Debris2021-11-07 → 2021-11-10
    Six meter ghost net adrift in 12-57.50S 121-58.83E at 070420Z nov
  11. HYDROPAC 3173/21 · Missiles2021-11-06 → 2021-11-11
    Hazardous operations, space debris 110239Z to 110316Z, alternate 120216Z to 120253Z and 130154Z to 130231Z…
  12. HYDROPAC 3153/21 · Surveys2021-11-04 → 2021-11-18
    Underwater operations in progress until further notice by M/V fugro maali along trackline joining 20-02S…
  13. HYDROPAC 3132/21 · Missiles2021-11-01 → 2021-11-06
    Hazardous operations, space debris 070412Z to 070449Z, alternate 080350Z to 080427Z and 090327Z to 090404Z…
  14. HYDROPAC 3108/21 · Missiles2021-10-30 → 2021-11-01
    Hazardous operations, space debris 030546Z to 030623Z, alternate 040523Z to 040600Z and 050501Z to 050538Z…
  15. HYDROPAC 3078/21 · Derelicts2021-10-27 → 2021-10-29
    Derelict 90 meter barge adrift in vicinity 05-39.80N 084-55.93E
  16. HYDROPAC 3067/21 · Missiles2021-10-26 → 2021-10-30
    Hazardous operations, space debris 310657Z to 310734Z oct, alternate 030546Z to 030623Z and 040523Z to…
  17. HYDROPAC 3065/21 · Cable ops2021-10-26 → 2021-11-04
    Pipeline operations in progress until further notice by M/V fugro maali along trackline joining 19-57.60S…
  18. HYDROPAC 3048/21 · Other2021-10-25 → 2021-10-28
    Ten meter long fishing net, marked by buoys, abandoned and adrift in 12-03.77S 124-08.75E at 250318Z oct
  19. HYDROPAC 3042/21 · Exercises2021-10-24 → 2021-11-05
    Hazardous operations 242100Z oct to 051100Z nov in area bound by 32-06.6S 115-14.8E, 32-09.8S 115-14.8E,…
  20. HYDROPAC 3032/21 · Other2021-10-23 → 2021-10-26
    200 meter long rope adrift in vicinity 20-52.64S 055-19.43E

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