Surveys

Survey operations in progress until 25 apr by M/V cgg amadeus towing six 9000 meter long cables in area…

South China Sea · Vietnam · HYDROPAC 991/18

issued: 2018-03-14 03:12Z
status: cancelled 2018-04-26 00:01Z (archive)
cancels: HYDROPAC 608/18
authority: NAVAREA XI 136/18 140250Z MAR 18.
sea: South China Sea
position: 12.609, 110.348
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

SOUTH CHINA SEA.
VIETNAM.
DNC 11.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 25 APR
   BY M/V CGG AMADEUS TOWING SIX 9000 METER
   LONG CABLES IN AREA BOUND BY
   12-30-01N 110-25-06E, 12-30-00N 110-16-15E,
   12-32-06N 110-13-27E, 12-38-07N 110-13-25E,
   12-43-14N 110-19-48E, 12-43-15N 110-27-55E,
   12-37-54N 110-27-58E.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROPAC 608/18.
3. CANCEL THIS MSG 26 APR 18.

This area · survey operations

13 within 180 nm since 2016 · 0 in the last 12 months · 0 in force now

Season · when survey operations happen here

month of issue, all years in the archive

Timeline

Survey operations in progress until 15 mar by M/V cgg amadeus towing six 9000 meter long cables in area…cancels · 2018-02-14
Survey operations in progress until 15 mar by M/V cgg amadeus towing six 9000 meter long cables in area…replaced · 2018-02-14

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

86 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.