Surveys

Geotechnical survey in progress until further notice by M/V greatship mamta in area between 20-32S 20-48S…

Australia-west Coast · HYDROPAC 2257/11

What this record establishes

Archived notice · 2011-08-20 09:32Z

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 207/11 120030Z AUG 11.. Issued 2011-08-12 00:53Z. 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: Australia-west Coast. No usable coordinates were parsed; a location-based nearby search is unavailable. Check the original wording for limits and qualifications.

issued: 2011-08-12 00:53Z
status: Archived notice
authority: AUSCOAST 207/11 120030Z AUG 11.
issued by: AUSCOAST
vessel: M/V GREATSHIP MAMTA · 8 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

AUSTRALIA-WEST COAST.
GEOTECHNICAL SURVEY IN PROGRESS UNTIL
FURTHER NOTICE BY M/V GREATSHIP MAMTA
IN AREA BETWEEN
20-32S 20-48S AND 114-54E 115-10E.
2.5 MILE BERTH REQUESTED.

Reading this warning

Until further notice: The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
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.

All warning terms →

Nearby notices listed in force · within 120 nm

No parsed position is available for this comparison.

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-02 17:41Z; 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.