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 2315/20 · Missiles2020-08-05 → 2020-08-05
    Hazardous operations, space debris 070738Z to 070816Z aug, alternate 080716Z to 080754Z aug in area bound by…
  2. HYDROPAC 2302/20 · Debris2020-08-04 → 2020-08-07
    3M fad adrift in vicinity 13-44.91S 120-36.90E at 040842Z aug
  3. HYDROPAC 2296/20 · Missiles2020-08-03 → 2020-08-07
    Hazardous operations, space debris 070738Z to 070816Z aug, alternate 080716Z to 080754Z aug in area bound by…
  4. HYDROPAC 2286/20 · Missiles2020-08-02 → 2020-08-03
    Hazardous operations, space debris 060759Z to 060837Z aug, alternate 070738Z to 070816Z aug in area bound by…
  5. HYDROPAC 2280/20 · Derelicts2020-08-01 → 2020-08-04
    F/V sudu baby 03 disabled and adrift in vicinity 04-00N 086-00E
  6. HYDROPAC 2278/20 · Derelicts2020-08-01 → 2020-08-01
    F/V jayaruwan 02 disabled and adrift due to engine failure in vicinity 05-50N 082-20E
  7. HYDROPAC 2270/20 · Cable ops2020-07-31 → 2020-08-12
    Cable operations 02 thru 11 aug by cableship teliri in vicinity of trackline joining 30-00.9S 031-13.9E,…
  8. HYDROPAC 2234/20 · Surveys2020-07-29 → 2020-07-31
    Survey operations in progress until further notice by M/V fugro etive in 19-50.3S 115-10.5E
  9. HYDROPAC 2220/20 · Missiles2020-07-27 → 2020-07-30
    Hazardous operations, space debris 010947Z to 011025Z aug, alternate 020925Z to 021003Z aug in area bound by…
  10. HYDROPAC 2204/20 · Missiles2020-07-26 → 2020-07-27
    Hazardous operations, space debris 311011Z to 311049Z jul, alternate 010947Z to 011025Z aug in area bound by…
  11. HYDROPAC 2184/20 · Exercises2020-07-24 → 2020-07-29
    Gunnery exercises 270600Z to 291400Z jul in area bound by 21-12.00S 054-57.00E, 21-26.00S 055-02.30E,…
  12. HYDROPAC 2182/20 · Missiles2020-07-24 → 2020-07-24
    Hazardous operations, space debris 291052Z to 291130Z jul, alternate 301030Z to 301108Z jul in area bound by…
  13. HYDROPAC 2131/20 · Derelicts2020-07-19 → 2020-07-20
    F/V rahorakhty disabled and adrift due to power loss in 03-31.8N 079-58.0E
  14. HYDROPAC 2114/20 · Derelicts2020-07-17 → 2020-07-24
    Derelict lifeboat adrift in vicinity 25-12.6S 048-00.0E at 171430Z jul
  15. HYDROPAC 2063/20 · Cable ops2020-07-12 → 2020-07-23
    Cable operations in progress until 231000Z jul by M/V teneo in area bound by 06-50S 104-30E, 06-50S 104-40E,…
  16. HYDROPAC 2045/20 · Missiles2020-07-11 → 2020-07-11
    Hazardous operations, space debris 111720Z to 111758Z jul, alternate 131637Z to 131715Z jul in area within…
  17. HYDROPAC 2041/20 · Missiles2020-07-10 → 2020-07-11
    Hazardous operations, space debris 111720Z to 111758Z jul, alternate 131637Z to 131715Z jul in area bound by…
  18. HYDROPAC 2027/20 · Missiles2020-07-08 → 2020-07-10
    Hazardous operations, space debris 111720Z to 111758Z jul in area bound by 28-46S 062-55E, 27-16S 063-05E,…
  19. HYDROPAC 2025/20 · Missiles2020-07-08 → 2020-07-08
    Hazardous operations, space debris 101742Z to 101821Z jul, alternate 111720Z to 111758Z jul in area bound by…
  20. HYDROPAC 2018/20 · Cable ops2020-07-08 → 2020-07-12
    Cable operations in progress until 201000Z jul by M/V teneo in area bound by 06-49.8S 104-31.5E, 06-51.2S…

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