Cable ops

Seismic survey in progress until 31 mar 17 by M/V western patriot, M/V venturer, M/V geco eagle towing 14…

Gulf of Mexico · Louisiana · NAVAREA IV 1004/16

What this record establishes

Archived notice · 2017-02-01 00:29Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · GECO EAGLE 291353Z NOV 16.. Issued 2016-11-29 13:56Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered
Gulf of Mexico · Louisiana. No usable coordinates were parsed; a location-based nearby search is unavailable. Check the original wording for limits and qualifications.
issued
2016-11-29 13:56Z
status
Archived notice
authority
GECO EAGLE 291353Z NOV 16.
NAVAREA
NAVAREA IV
issued by
GECO EAGLE
vessels
M/V GECO EAGLE · 153 messagesM/V VENTURER · 18 messagesM/V WESTERN PATRIOT · 240 messagesM/V WG COLUMBUS · 47 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

GULF OF MEXICO.
LOUISIANA.
1. SEISMIC SURVEY IN PROGRESS UNTIL 31 MAR 17
   BY M/V WESTERN PATRIOT, M/V VENTURER,
   M/V GECO EAGLE TOWING 14 9000 METER LONG
   CABLES AND M/V WG COLUMBUS TOWING 14
   9000 METER LONG CABLES IN AREA BETWEEN
   28-08N 27-24N AND 091-32W 089-31W
   SEVEN MILE BERTH REQUESTED.
2. CANCEL NAVAREA IV 1002/16.
3. CANCEL THIS MSG 01 APR 17.

Reading this warning

Seismic survey
A survey that maps the rock beneath the seabed with sound pulses from air guns, recorded on streamers kilometres long.
Towed array / streamer
Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
Tow / towing
A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
Position (degrees and minutes)
How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
Wide berth requested
Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
Cancellation reference
A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
NAVAREA
One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Nearby notices listed in force · within 120 nm

No parsed position is available for this comparison.

Worldwide in the collected sources

23 cable & pipeline work listed in force · see all

Record snapshot 2026-09-25 02:00Z; source collection times vary.

Cable ops

Cable laying, pipeline and seismic operations. All current cable & pipeline work →

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.