Surveys

Underwater operations in progress until further notice by M/V greatship mamta in area between 20-03S 20-05S…

Australia-northwest Coast · HYDROPAC 3058/11

issued: 2011-10-30 14:39Z
status: cancelled 2011-12-20 21:55Z (archive)
authority: AUSCOAST 267/11 301358Z OCT 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
20-03S 20-05S AND 115-10E 115-12E.
2.5 MILE BERTH REQUESTED.

Timeline

Cancel HYDROPAC 3058/11 and this msg, operations completecancelled by · 2011-12-20

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.