Underwater operations in progress until further notice by M/V investigator along trackline joining 37-57.00S…
Bass Strait · HYDROPAC 1564/24
What this record establishes
Archived notice · 2024-05-10 15:15Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · AUSCOAST 154/24 100806Z MAY 24.. Issued 2024-05-10 08:18Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Bass Strait. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.
Related notices and cancellation links
- issued
- 2024-05-10 08:18Z
- status
- Archived notice
- authority
- AUSCOAST 154/24 100806Z MAY 24.
- issued by
- AUSCOAST
- sea
- Bass Strait
- position
- -38.425, 148.633
- vessel
- M/V INVESTIGATOR · 30 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
BASS STRAIT. AUSTRALIA. DNC 05. UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER NOTICE BY M/V INVESTIGATOR ALONG TRACKLINE JOINING 37-57.00S 148-13.00E, 38-54.00S 149-03.00E. ONE MILE BERTH REQUESTED.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- Track line joining
- Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
Collected reports in this area · survey operations
101 within 180 nm since 2001 · 2 in the last 12 months · 1 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Drill rig valaris 107/A8GS5 in position 38-17.79S 147-40.57E 2.5 nm clearance requested2026-08-20
- Underwater operations in progress until further notice by M/V pmg emerald in area bound by 39-01.29S…2026-02-12
- Underwater operations in progress until further notice by M/V investigator in area bound by 37-57.00S…2024-05-10
- Sub-surface scientific moorings established in: a. 38-07.56S 147-31.92E2024-03-04
- Underwater operations in progress until further notice by M/V samson explorer towing 900 meter long cables…2024-02-23
- Sub-surface scientific moorings established in: a. 38-19.99S 147-28.33E2024-02-06
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
Worldwide in the collected sources
50 survey operations listed in force · see all
Record snapshot 2026-09-24 21:50Z; source collection times vary.
Surveys
Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.