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 2798/14 · Derelicts2014-09-21 → 2014-09-21
    Vessel disabled and adrift in 13-46.9S 089-38.3E at 200745Z sep
  2. HYDROPAC 2759/14 · Exercises2014-09-17 → 2014-09-18
    Gunnery exercises 181400Z to 181900Z sep in area bound by 21-12.0S 054-57.0E, 21-26.0S 055-02.5E, 21-31.2S…
  3. HYDROPAC 2664/14 · Exercises2014-09-11 → 2014-09-17
    Gunnery exercises 120800Z to 121200Z, 130200Z to 131800Z, 160200Z to 162100Z and 170200Z to 171200Z sep in…
  4. HYDROPAC 2613/14 · Exercises2014-09-05 → 2014-09-11
    Gunnery exercises 120800Z to 121200Z, 130200Z to 131800Z and 162100Z to 171200Z sep in area bound by…
  5. HYDROPAC 2489/14 · Exercises2014-08-26 → 2014-08-28
    Gunnery exercises 270300Z to 271300Z and 280300Z to 281000Z aug in area bound by 21-12.0S 054-57.0E,…
  6. HYDROPAC 2447/14 · Nav aids2014-08-20 → 2014-08-20
    Australia-northwest Coast
  7. HYDROPAC 2432/14 · Nav aids2014-08-19 → 2014-08-19
    Australia-northwest Coast
  8. HYDROPAC 2378/14 · Nav aids2014-08-14 → 2014-08-14
    Australia-northwest Coast
  9. HYDROPAC 2376/14 · Nav aids2014-08-14 → 2014-08-15
    Australia-northwest Coast
  10. HYDROPAC 2356/14 · Derelicts2014-08-12 → 2014-08-14
    Derelict 30 meter F/V on fire and adrift vicinity 09-01S 079-04E at 120900Z aug
  11. HYDROPAC 2334/14 · Nav aids2014-08-11 → 2014-08-11
    Australia-west Coast
  12. HYDROPAC 2301/14 · Derelicts2014-08-06 → 2014-08-07
    Derelict vessel, red hull, adrift vicinity 34-26.5S 028-59.2E at 060815Z aug
  13. HYDROPAC 2244/14 · Piracy2014-08-01 → 2014-08-02
    Vessel reports possible piracy activity vicinity 05-00S 088-30E at 010507Z aug
  14. HYDROPAC 2209/14 · Derelicts2014-07-28 → 2014-07-31
    Derelict 40 meter F/V, white hull, adrift vicinity 03-48.00S 085-26.70E at 280845Z jul
  15. HYDROPAC 2177/14 · Other2014-07-25 → 2014-08-02
    Red flare sighted vicinity 33-03.23S 042-23.05E
  16. HYDROPAC 2070/14 · Derelicts2014-07-14 → 2014-07-17
    Derelict 37 foot F/V PUJAN-01 partially submerged and adrift vicinity 03-00N 086-00E
  17. HYDROPAC 2036/14 · Other2014-07-10 → 2014-07-11
    Vessel leven brown reports crewman requiring medical assistance in 12-29.26S 082-52.27E at 101900Z jul
  18. HYDROPAC 2027/14 · Other2014-07-09 → 2014-07-14
    M/V clipper legacy reports crewman with heart attack in 30-01S 042-11E at 091614Z jul
  19. HYDROPAC 2026/14 · Other2014-07-09 → 2014-07-14
    F/V torre giulia reports crewman requiring medical assistance in 05-45S 045-55E at 091530Z jul
  20. HYDROPAC 2018/14 · Missiles2014-07-09 → 2014-07-14
    Hazardous operations 141423Z to 141705Z jul, alternate 161338Z to 161620Z jul in area bound by 40-06S…

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