Great Australian Bight

IHO sea area 62 · 118° to 146° E, -44° to -31° N

in force
5
last 12 months
18
archive messages
565
categories
13

What the archive shows

565 messages are recorded since 1991-02-13 for the Great Australian Bight. The selection uses the IHO sea area; a message may describe an exercise, equipment outage or continuing operation as well as a hazard report.

Nav aids accounts for 289 of 565 recorded messages (51%), the largest category group in this selection.

The NGA historical archive froze in 2024-05; live collection began 2026-08-17. Counts around that gap are incomplete, and changes in reporting volume do not establish changes in incident frequency.

In force now · 5

  1. AUSCOAST 292/26 · Nav aids2026-09-07
    Two 6 meter yellow buoys with white flashing light every 3 seconds are temporarily placed near 38-47.19S 142-36.00E; 2.5 nautical mile clearance requested.
  2. HYDROPAC 1864/26 · Nav aids2026-06-29
    A yellow six-meter buoy is established in the Great Australian Bight at 38-47.62S 142-37.77E; a three-mile berth is requested.
  3. AUSCOAST 228/26 · Nav aids2026-06-29
    A 6-meter yellow surface buoy is established at 38-47.62S 142-37.77E, requesting 2.5 nautical miles clearance.
  4. HYDROPAC 1585/26 · Cable ops2026-05-30
    Cable-laying is in progress in Bass Strait and Great Australian Bight, Australia, by the ship Dependable; a two-mile berth is requested.
  5. AUSCOAST 208/26 · Other2026-05-30
    The vessel Dependable is conducting cable lay operations from 38-25S 144-28E to 40-22S 137-28E, with 1.5 nautical mile clearance requested.

Longest in force

  1. AUSCOAST 208/26 · Other2026-05-30
    The vessel Dependable is conducting cable lay operations from 38-25S 144-28E to 40-22S 137-28E, with 1.5 nautical mile clearance requested.
  2. HYDROPAC 1585/26 · Cable ops2026-05-30
    Cable-laying is in progress in Bass Strait and Great Australian Bight, Australia, by the ship Dependable; a two-mile berth is requested.
  3. AUSCOAST 228/26 · Nav aids2026-06-29
    A 6-meter yellow surface buoy is established at 38-47.62S 142-37.77E, requesting 2.5 nautical miles clearance.
  4. HYDROPAC 1864/26 · Nav aids2026-06-29
    A yellow six-meter buoy is established in the Great Australian Bight at 38-47.62S 142-37.77E; a three-mile berth is requested.
  5. AUSCOAST 292/26 · Nav aids2026-09-07
    Two 6 meter yellow buoys with white flashing light every 3 seconds are temporarily placed near 38-47.19S 142-36.00E; 2.5 nautical mile clearance requested.

By year

91
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 · available archive

Nav aids28951%
Incidents12522%
Surveys468%
Other427%
Derelicts214%
Missiles102%
Cable ops102%
Wrecks81%
Containers71%
Debris31%
Towing20%
Spills10%
Exercises10%

Archive · 560 cancelled

  1. HYDROPAC 715/20 · Surveys2020-03-02 → 2020-03-09
    Survey operations in progress until further notice by M/V nordic explorer in area bound by 39-22.10S…
  2. HYDROPAC 710/20 · Surveys2020-03-01 → 2020-03-02
    Survey operations in progress until further notice by M/V nordic explorer in area bound by 39-26.58S…
  3. HYDROPAC 703/20 · Surveys2020-02-29 → 2020-03-05
    Underwater operations in progress by M/V tek ocean spirit in area bound by 39-01S 142-49E, 39-12S 142-49E,…
  4. HYDROPAC 574/20 · Surveys2020-02-17 → 2020-03-01
    Survey operations in progress until further notice by M/V nordic explorer in area bound by 39-18.41S…
  5. HYDROPAC 566/20 · Surveys2020-02-16 → 2020-02-17
    Survey operations in progress until further notice by M/V nordic explorer in area bound by 39-18.41S…
  6. HYDROPAC 498/20 · Surveys2020-02-12 → 2020-02-16
    Survey operations in progress until further notice by M/V nordic explorer in area bound by 40-59.2S…
  7. HYDROPAC 469/20 · Surveys2020-02-10 → 2020-02-12
    Survey operations in progress until further notice by M/V nordic explorer towing five mile long cable in…
  8. HYDROPAC 429/20 · Surveys2020-02-08 → 2020-02-10
    Survey operations in progress until further notice by M/V nordic explorer towing five mile long cable in…
  9. HYDROPAC 413/20 · Surveys2020-02-07 → 2020-02-08
    Survey operations in progress until further notice by M/V nordic explorer towing five mile long cable in…
  10. HYDROPAC 371/20 · Surveys2020-02-04 → 2020-02-07
    Survey operations in progress until further notice by M/V nordic explorer towing five mile long cable in…
  11. HYDROPAC 231/20 · Nav aids2020-01-21 → 2020-03-11
    Breaksea island light temporarily changed to fl (2) 6 sec 15 miles in 35-03.9S 118-03.4E
  12. HYDROPAC 205/20 · Nav aids2020-01-18 → 2020-01-21
    Breaksea island light 35-03.9S 118-03.4E inoperative
  13. HYDROPAC 177/20 · Surveys2020-01-16 → 2020-02-04
    Survey operations in progress until further notice by M/V nordic explorer towing five mile long cable in…
  14. HYDROPAC 157/20 · Surveys2020-01-15 → 2020-01-16
    Survey operations in progress until further notice by M/V nordic explorer towing five mile long cable in…
  15. HYDROPAC 105/20 · Nav aids2020-01-09 → 2020-01-11
    Cape du couedic light 36-03.5S 136-42.2E unlit
  16. HYDROPAC 48/20 · Nav aids2020-01-04 → 2020-01-09
    Cape du couedic light 36-03.5S 136-42.2E unreliable
  17. HYDROPAC 4275/19 · Other2019-12-28 → 2019-12-28
    Flares sighted in vicinity 35-09.27S 136-27.75E
  18. HYDROPAC 4162/19 · Wrecks2019-12-16 → 2019-12-16
    Plank shoal light 33-29-51S 137-28-35E unlit
  19. HYDROPAC 4102/19 · Nav aids2019-12-11 → 2019-12-12
    Cape nelson light 38-25.8S 141-32.6E unlit
  20. HYDROPAC 4073/19 · Nav aids2019-12-09 → 2019-12-11
    Troubridge hill light 35-09.96S 137-38.44E 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.

Great Australian Bight — navigational warnings — archive page 8 · seahazards