Surveys

Underwater operations in progress until further notice by M/V siem amethyst in area between 19-39S 19-51S…

Eastern Indian Ocean · Australia-northwest Coast · HYDROPAC 2443/18

issued: 2018-07-03 13:08Z
status: cancelled 2018-07-22 15:19Z (archive)
authority: AUSCOAST 149/18 031244Z JUL 18.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

EASTERN INDIAN OCEAN.
AUSTRALIA-NORTHWEST COAST.
DNC 04.
UNDERWATER OPERATIONS IN PROGRESS UNTIL FURTHER
NOTICE BY M/V SIEM AMETHYST IN AREA BETWEEN
19-39S 19-51S AND 115-38E 115-56E.
THREE MILE BERTH REQUESTED.

Timeline

Cancel HYDROPAC 2443/18 and this msg, operations completedcancelled by · 2018-07-22

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.