Indian Ocean

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

in force
22
last 12 months
26
since 1997
3,522
categories
15

In force now · 22

  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 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.
  17. AUSCOAST 253/26 · Nav aids2026-07-24
    Cliff Head Platform light in position 29-26.99S 114-52.18E is unlit.
  18. 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.
  19. 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.
  20. 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.
  21. 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.
  22. 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%
Missiles54315%
Nav aids46113%
Surveys37911%
Other37611%
Exercises35310%
Piracy34110%
Cable ops1915%
Debris1093%
Icebergs822%
Wrecks351%
Containers221%
Volcanic50%
Towing30%
Mines10%

Archive · 3,500 cancelled

  1. HYDROPAC 2260/19 · Derelicts2019-07-12 → 2019-07-15
    Derelict F/V feng kuo 568 adrift in vicinity 33-27.05S 035-45.04E
  2. HYDROPAC 2243/19 · Nav aids2019-07-11 → 2019-08-22
    All navigational aids at platform angel 19-29.93S 116-35.88E inoperative
  3. HYDROPAC 2239/19 · Missiles2019-07-10 → 2019-07-11
    Missile operations 1600Z to 1900Z daily 10 and 11 jul in area bound by 27-19.12S 042-28.12E, 26-58.48S…
  4. HYDROPAC 2229/19 · Missiles2019-07-09 → 2019-07-11
    Hazardous operations, space debris 1600Z to 1900Z daily 10 and 11 jul in area bound by 26-58S 044-24E,…
  5. HYDROPAC 2212/19 · Other2019-07-08 → 2019-07-11
    Six meter buoy, yellow, adrift in 20-57.3S 114-24.8E at 080730Z jul
  6. HYDROPAC 2206/19 · Other2019-07-07 → 2019-07-10
    Buoy, yellow, fl w, adrift in 19-57.3S 114-24.8E at 171202Z jul
  7. HYDROPAC 2168/19 · Missiles2019-07-03 → 2019-07-11
    Hazardous operations, space debris 0401Z to 0518Z daily 06 jul thru 05 aug in area bound by 21-19S 088-29E,…
  8. HYDROPAC 2167/19 · Derelicts2019-07-03 → 2019-07-06
    Derelict F/V feng kuo 568 adrift in vicinity 33-27.05S 035-45.07E
  9. HYDROPAC 2159/19 · Other2019-07-02 → 2019-07-02
    F/V feng kuo no
  10. HYDROPAC 2150/19 · Derelicts2019-07-01 → 2019-07-04
    Derelict S/V danzig adrift in 33-29.5S 031-26.8E
  11. HYDROPAC 1979/19 · Exercises2019-06-17 → 2019-06-18
    Gunnery exercises 180200Z to 181400Z jun in area bound by 21-12.00S 054-57.00E, 21-19.30S 054-25.54E,…
  12. HYDROPAC 1971/19 · Surveys2019-06-17 → 2019-08-13
    Scientific mooring, least depth 30 meters, established in 31-39.5S 114-11.0E
  13. HYDROPAC 1810/19 · Derelicts2019-06-03 → 2019-06-03
    Derelict F/V lakshan adrift in 03-02N 080-59E at 030330Z jun
  14. HYDROPAC 1798/19 · Derelicts2019-06-01 → 2019-06-04
    Derelict F/V lakshan adrift in 02-12N 084-02E at 310945Z may
  15. HYDROPAC 1736/19 · Debris2019-05-27 → 2019-05-30
    Yellow buoy adrift in 00-49N 089-08.1E
  16. HYDROPAC 1732/19 · Other2019-05-26 → 2019-05-29
    Wire rope adrift in 13-59.43S 119-57.00E at 260424Z may
  17. HYDROPAC 1724/19 · Exercises2019-05-24 → 2019-05-30
    Gunnery exercises 300330Z to 300600Z may in area bound by 21-12.00S 054-57.00E, 21-19.30S 054-25.54E,…
  18. HYDROPAC 1723/19 · Exercises2019-05-24 → 2019-05-28
    Gunnery exercises 280200Z to 281600Z may in area bound by 21-12.00S 054-57.00E, 21-19.30S 054-33.30E,…
  19. HYDROPAC 1710/19 · Derelicts2019-05-23 → 2019-05-26
    Derelict F/V adrift in 03-38S 087-24E at 230445Z may
  20. HYDROPAC 1707/19 · Nav aids2019-05-23 → 2019-06-04
    Tanner islet light 16-05.7S 123-31.8E unlit

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