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 2016/20 · Other2020-07-07 → 2020-07-08
    M/V new triumph reports critically ill crewman in need of insulin injection in 05-49.0N 083-54.3E
  2. HYDROPAC 2010/20 · Cable ops2020-07-06 → 2020-07-08
    Cable operations 071000Z thru 171000Z jul by M/V teneo in area bound by 06-49.8S 104-31.5E, 06-51.2S…
  3. HYDROPAC 2008/20 · Missiles2020-07-06 → 2020-07-08
    Hazardous operations, space debris 081825Z to 081903Z jul, alternate 101742Z to 101821Z jul in area within…
  4. HYDROPAC 2007/20 · Missiles2020-07-06 → 2020-07-08
    Hazardous operations, space debris 081825Z to 081903Z jul, alternate 101742Z to 101821Z jul in area bound by…
  5. HYDROPAC 1983/20 · Debris2020-07-04 → 2020-07-07
    Fishing net adrift in 12-57.13S 121-40.68E at 040548Z jul
  6. HYDROPAC 1973/20 · Missiles2020-07-03 → 2020-07-06
    Hazardous operations, space debris 081825Z to 081903Z jul, alternate 091807Z to 091845Z jul in area bound by…
  7. HYDROPAC 1972/20 · Debris2020-07-03 → 2020-07-04
    Fishing net adrift in 12-50.18S 121-40.00E at 030521Z jul
  8. HYDROPAC 1949/20 · Missiles2020-06-30 → 2020-07-01
    Hazardous operations, space debris 010213Z to 010329Z jul in area bound by 40-00S 011-00E, 38-00S 014-00E,…
  9. HYDROLANT 2102/20 · Missiles2020-06-30 → 2020-07-01
    Hazardous operations, space debris 010213Z to 010329Z jul in area bound by 40-00S 011-00E, 38-00S 014-00E,…
  10. HYDROPAC 1946/20 · Nav aids2020-06-30 → 2020-07-01
    RACON at browse island light 14-06-30S 123-32-55E inoperative
  11. HYDROPAC 1937/20 · Nav aids2020-06-29 → 2020-06-30
    RACON at browse island light 14-06-30S 123-32-55E unreliable
  12. HYDROPAC 1904/20 · Missiles2020-06-26 → 2020-06-27
    Hazardous operations, space debris 282205Z to 282243Z jun, in area bound by 28-46S 062-55E, 27-16S 063-05E,…
  13. HYDROPAC 1903/20 · Cable ops2020-06-26 → 2020-07-02
    Cable operations in progress until 01 jul by cableship teliri in area bound by 20-55.3S 055-17.0E, 20-46.0S…
  14. HYDROPAC 1894/20 · Surveys2020-06-26 → 2020-07-01
    Underwater operations in progress until further notice with submersible in area bound by 31-24S 114-30E,…
  15. HYDROPAC 1883/20 · Containers2020-06-25 → 2020-06-28
    Three containers adrift in vicinity 34-43S 115-06E at 251300Z jun 20
  16. HYDROPAC 1881/20 · Containers2020-06-25 → 2020-06-25
    Three containers adrift in vicinity 34-33S 115-06E at 251500Z jun 20
  17. HYDROPAC 1880/20 · Missiles2020-06-25 → 2020-06-26
    Hazardous operations, space debris 262244Z to 262322Z jun, in area bound by 28-46S 062-55E, 27-16S 063-05E,…
  18. HYDROPAC 1873/20 · Missiles2020-06-25 → 2020-06-30
    Hazardous operations, space debris 010213Z to 010329Z jul, alternate 020209Z jul to 020325Z jul in area…
  19. HYDROLANT 2042/20 · Missiles2020-06-25 → 2020-06-30
    Hazardous operations, space debris 010213Z to 010329Z jul, alternate 020209Z jul to 020325Z jul in area…
  20. HYDROPAC 1861/20 · Nav aids2020-06-23 → 2020-07-26
    Eight buoys, fl 3, established in 20-34.6S 114-46.6E

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