Indian Ocean

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

in force
23
last 12 months
23
since 1997
3,519
categories
15

In force now · 23

  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 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.
  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%
Surveys37811%
Other37611%
Exercises35310%
Piracy34010%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,496 cancelled

  1. HYDROPAC 3316/20 · Missiles2020-11-10 → 2020-11-12
    Hazardous operations, space debris 150116Z to 150203Z nov, alternate 160054Z to 160141Z and 170031Z to…
  2. HYDROPAC 3264/20 · Other2020-11-05 → 2020-11-08
    Three mile long fishing net with red floats adrift in 21-32S 056-05E at 050042Z nov
  3. HYDROPAC 3246/20 · Debris2020-11-04 → 2020-11-07
    Fishing gear adrift in vicinity 09-15.2S 103-53.6E at 040321Z nov
  4. HYDROPAC 3243/20 · Surveys2020-11-03 → 2020-11-05
    Underwater operations in progress until further notice by M/V bhagwan wauri in area bound by 35-08S 116-36E,…
  5. HYDROPAC 3235/20 · Debris2020-11-03 → 2020-11-06
    Three mile long fishing line with buoys adrift in 21-32S 056-05E
  6. HYDROPAC 3210/20 · Missiles2020-11-01 → 2020-11-06
    Hazardous operations, space debris 060526Z to 060701Z, alternate 070522Z to 070657Z nov in area bound by…
  7. HYDROPAC 3204/20 · Missiles2020-10-31 → 2020-11-01
    Hazardous operations, space debris 050530Z to 050705Z nov, alternate 060526Z to 060701Z and 070522Z to…
  8. HYDROPAC 3123/20 · Derelicts2020-10-25 → 2020-10-25
    F/V avril warrior disabled and adrift in 36-42.05S 020-49.07E
  9. HYDROPAC 3095/20 · Missiles2020-10-22 → 2020-10-24
    Hazardous operations, space debris 241724Z to 241817Z oct, alternate 251703Z to 251756Z oct in area bound by…
  10. HYDROPAC 3082/20 · Other2020-10-22 → 2020-10-23
    Ten meter vessel sunk in 20-59.4S 112-45.3E at 220428Z oct
  11. HYDROPAC 3064/20 · Missiles2020-10-20 → 2020-10-22
    Hazardous operations, space debris 221807Z to 221900Z oct, alternate 231746Z to 231839Z and 241724Z to…
  12. HYDROPAC 3040/20 · Missiles2020-10-18 → 2020-10-18
    Hazardous operations, space debris 181425Z to 181508Z oct, in area bound by 29-43S 060-07E, 24-55S 064-27E,…
  13. HYDROPAC 3011/20 · Missiles2020-10-16 → 2020-10-20
    Hazardous operations, space debris 211829Z to 211922Z oct, alternate 221807Z to 221900Z, 231746Z to 231839Z…
  14. HYDROPAC 2979/20 · Missiles2020-10-13 → 2020-10-18
    Hazardous operations, space debris 181425Z to 181508Z oct, alternate 191404Z to 191447Z, 201342Z to 201425Z…
  15. HYDROPAC 2926/20 · Exercises2020-10-09 → 2020-10-11
    Gunnery exercises 111100Z to 111330Z oct in area bound by 21-19.30S 054-25.54E, 21-39.02S 054-33.30E,…
  16. HYDROPAC 2910/20 · Exercises2020-10-07 → 2020-10-11
    Gunnery exercises 101100Z to 111330Z oct in area bound by 21-19.30S 054-25.54E, 21-39.02S 054-33.30E,…
  17. HYDROPAC 2891/20 · Exercises2020-10-05 → 2020-10-07
    Gunnery exercises 061000Z to 072000Z oct in area bound by 21-10.30S 054-25.54E, 21-12.00S 054-57.00E,…
  18. HYDROPAC 2887/20 · Missiles2020-10-05 → 2020-10-06
    Hazardous operations, space debris 061330Z to 061421Z oct, alternate 071309Z to 071359Z oct in area bound by…
  19. HYDROPAC 2882/20 · Missiles2020-10-05 → 2020-10-06
    Hazardous operations, space debris 101709Z to 101801Z oct, alternate 111647Z to 111740Z oct in area bound by…
  20. HYDROPAC 2873/20 · Missiles2020-10-03 → 2020-10-05
    Hazardous operations, space debris 051352Z to 051453Z oct, alternate 061330Z to 061421Z oct in area within…

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