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

issued: 2011-08-12 00:53Z
status: cancelled 2011-08-20 09:32Z (archive)
authority: AUSCOAST 207/11 120030Z AUG 11.
source: nga_json · 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.

Timeline

HYDROPAC warnings in force 200800Z aug 11cancelled by · 2011-08-20

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

73 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.