Indian Ocean

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

in force
21
last 12 months
56
since 1997
3,589
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
25
26

By month (all years)

J
F
M
A
M
J
J
A
S
O
N
D

By category · since 1997

Derelicts62217%
Missiles56016%
Nav aids46713%
Surveys41211%
Other37610%
Exercises35710%
Piracy34110%
Cable ops1955%
Debris1093%
Icebergs822%
Wrecks371%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,568 cancelled

  1. HYDROPAC 2024/03 · Derelicts2003-11-23 → 2003-11-30
    M/V turicum disabled and adrift vicinity 38-14S 069-23E
  2. HYDROPAC 2019/03 · Derelicts2003-11-22 → 2003-11-23
    M/V turicum disabled and adrift vicinity 38-17S 069-05E
  3. HYDROPAC 2014/03 · Derelicts2003-11-22 → 2003-11-22
    M/V turicum disabled and adrift vicinity 38-15S 068-49E
  4. HYDROPAC 1958/03 · Surveys2003-11-13 → 2003-11-25
    Underwater operations in progress until further notice by M/V cso venturer in area bound by 19-36S 116-04E,…
  5. HYDROPAC 1952/03 · Cable ops2003-11-12 → 2004-01-05
    Cable operations in progress until further notice by cableship chamarel in area bound by 20-53.0S 057-57.0E,…
  6. HYDROPAC 1949/03 · Nav aids2003-11-12 → 2004-01-12
    Browse island light 14-06.2S 123-32.9E changed to: fl (2) w 10 sec 11 meters 11 miles
  7. HYDROPAC 1942/03 · Surveys2003-11-09 → 2003-11-13
    Underwater operations in progress until further notice by M/V cso venturer in area bound by 19-36S 116-04E,…
  8. HYDROPAC 1934/03 · Derelicts2003-11-08 → 2003-11-15
    Derelict seven meter vessel partially submerged and adrift vicinity 16-27.9S 120-56.6E at 072300Z nov
  9. HYDROPAC 1928/03 · Surveys2003-11-05 → 2003-12-06
    Underwater operations in progress until further notice by M/V rockwater II in 20-43.4S 114-59.0E
  10. HYDROPAC 1871/03 · Nav aids2003-10-27 → 2003-11-12
    Browse island light 14-06.6S 123-32.7E temporarily changed to: fl (2) w 10 sec 11 miles
  11. HYDROPAC 1860/03 · Nav aids2003-10-26 → 2003-10-27
    RACON at browse island light 14-06.6S 123-32.8E inoperative
  12. HYDROPAC 1813/03 · Other2003-10-19 → 2003-10-26
    5100 meter long cable adrift vicinity 19-27.4S 115-10.7E at 191056Z oct
  13. HYDROPAC 1805/03 · Other2003-10-18 → 2003-10-19
    5100 meter long cable adrift vicinity 18-22.0S 116-45.3E
  14. HYDROPAC 1752/03 · Derelicts2003-10-10 → 2003-10-12
    Vessel tasneem reports disabled solo crewman in 11-21S 094-08E at 100247Z oct
  15. HYDROPAC 1731/03 · Exercises2003-10-07 → 2003-10-10
    Hazardous operations 0330Z to 0830Z daily 09 thru 11 oct in area bound by 21-35S 055-30E, 21-35S 056-40E,…
  16. HYDROPAC 1697/03 · Surveys2003-10-01 → 2004-01-01
    Underwater operations: a. in progress until 312359Z dec in area between 09-00S 13-00S and 070-00E 073-00E
  17. HYDROPAC 1659/03 · Surveys2003-09-26 → 2003-10-01
    Underwater operations 010001Z oct to 312359Z dec: a. in area between 09-00S 13-00S and 070-00E 073-00E
  18. HYDROPAC 1642/03 · Icebergs2003-09-24 → 2003-10-01
    Large iceberg in 50-56.7S 069-27.1E at 231200Z sep
  19. HYDROPAC 1607/03 · Nav aids2003-09-18 → 2003-09-20
    Freshwater point light 29-36.0S 114-59.0E unlit
  20. HYDROPAC 1586/03 · Other2003-09-14 → 2003-09-17
    Two persons overboard from F/V ching hsin vicinity 30-30S 088-50E at 131905Z sep

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