Surveys

Underwater operations in progress until further notice by M/V greatship mamta in area between 19-40S 19-43S…

Australia-northwest Coast · HYDROPAC 3594/11

issued: 2011-12-25 20:29Z
status: cancelled 2012-01-04 23:45Z (archive)
authority: AUSCOAST 341/11 251914Z DEC 11.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

AUSTRALIA-NORTHWEST COAST.
UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER
NOTICE BY M/V GREATSHIP MAMTA IN AREA BETWEEN
19-40S 19-43S AND 116-42E 116-45E.
2.5NM BERTH REQUESTED.

Timeline

Cancel HYDROPAC 3594/11 and this msg, operations completedcancelled by · 2012-01-04

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

84 survey operations in force · see all

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.