Seismic survey in progress until further notice by M/V markab along trackline between 38-38S 142-55E and…
Great Australian Bight · HYDROPAC 47/04
What this record establishes
Archived notice · 2004-01-25 01:49Z
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 4/04 POR EGC#316 110941Z JAN 04. Issued 2004-01-11 10:09Z. 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
- Great Australian Bight. 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
- Cancel HYDROPAC 47/04 and this msg, operations suspendedlater cancellation notice
Current notices and reporting history in the Great Australian Bight →
- issued
- 2004-01-11 10:09Z
- status
- Archived notice
- authority
- AUSCOAST 4/04 POR EGC#316 110941Z JAN 04
- issued by
- AUSCOAST
- sea
- Great Australian Bight
- position
- -38.875, 142.917
- vessel
- M/V MARKAB · 44 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V MARKAB ALONG TRACKLINE BETWEEN 38-38S 142-55E AND 39-07S 142-55E. 2.5 MILE BERTH REQUESTED.
Reading this warning
- Seismic survey
- A survey that maps the rock beneath the seabed with sound pulses from air guns, recorded on streamers kilometres long.
- 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 · cable & pipeline work
18 within 180 nm since 2000 · 3 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.
- Great australian bight2026-05-30
- Great australian bight2026-04-16
- Cable operations in progress until further notice by cableship ile d' yeu along trackline joining 38-37.00S…2026-01-07
- Pipeline operations in progress until further notice by M/V mma coral with submersible along trackline…2024-02-22
- Pipeline operations in progress until further notice by M/V mma coral with submersible in area bound by…2024-02-19
- Seismic survey in progress until further notice by M/V pacific explorer towing six four mile cables within…2008-01-30
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
- Six meter buoy, yellow, established in 38-47.62S 142-37.77ENav aids · 14.3 nm
- 1 X 6M yellow surface buoy established in position 38-47.62S 142-37.77E 2.5NM clearance requestedNav aids · 14.3 nm
- 2 X 6M yellow surface buoys fl.white 3S temporarily established within 1.0NM of position 38-47.19S…Nav aids · 15.7 nm
- Great australian bightCable ops · 33.2 nm
- Special purpose vessel dependable / kdej / 367137000 conducting cable lay operations 10NM either side of…Other · 33.2 nm
Worldwide in the collected sources
23 cable & pipeline work listed in force · see all
Record snapshot 2026-10-03 18:36Z; source collection times vary.
Cable ops
Cable laying, pipeline and seismic operations. All current cable & pipeline work →
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.