Surveys

Survey operations in progress until 18 oct by M/V polar marquis towing 12 8100 meter long cables in area…

Gulf of Guinea · Equatorial Guinea · HYDROLANT 1561/18

issued
2018-05-18 16:39Z
status
cancelled 2018-10-19 00:01Z (archive)
authority
NAVAREA II 215/18 181632Z MAY 18.
sea
Gulf of Guinea
position
1.652, 8.767
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

GULF OF GUINEA.
EQUATORIAL GUINEA.
DNC 01.
1. SURVEY OPERATIONS IN PROGRESS UNTIL 18 OCT
   BY M/V POLAR MARQUIS TOWING 12 8100 METER LONG
   CABLES IN AREA BOUND BY
   02-10.0N 008-06.0E, 02-10.0N 009-41.2E,
   01-49.5N 009-41.5E, 01-39.5N 009-32.9E,
   01-33.9N 009-31.4E, 01-25.0N 009-22.0E,
   01-25.6N 009-16.8E, 01-25.0N 009-15.7E,
   01-21.8N 009-14.9E, 01-13.2N 009-16.3E,
   01-10.0N 009-14.5E, 01-05.0N 009-13.5E,
   01-05.0N 007-56.0E.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 19 OCT 18.

This area · survey operations

31 within 180 nm since 2003 · 0 in the last 12 months · 0 in force now

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Season · when survey operations happen here

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month of issue, all years in the archive

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.