Surveys

Underwater operations in progress until further notice by M/V derrick barge 30 in area between 21-43.6S…

Australia-northwest Coast · HYDROPAC 2233/12

issued: 2012-08-06 04:11Z
status: cancelled 2012-09-19 07:24Z (archive)
authority: AUSCOAST 211/12 060349Z AUG 12.
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 DERRICK BARGE 30 IN AREA BETWEEN
21-43.6S 21-43.8S AND 114-49.5E 114-49.7E.
ONE MILE BERTH REQUESTED.

Timeline

Underwater operations in progress until further notice by M/V derrick barge 30 in area between 21-32S 21-35S…cancelled by · 2012-09-19

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.