Cable ops

Seismic survey 12 aug thru 31 mar 17 by M/V geco eagle, M/V amazon warrior, M/V western patriot and M/V…

Gulf of Mexico · NAVAREA IV 657/16

What this record establishes

Archived notice · 2016-10-14 01:14Z

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 101003Z AUG 16.. Issued 2016-08-10 11:30Z. 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. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the Gulf of Mexico →

issued
2016-08-10 11:30Z
status
Archived notice
authority
GECO EAGLE 101003Z AUG 16.
NAVAREA
NAVAREA IV
issued by
GECO EAGLE
sea
Gulf of Mexico
position
27.768, -90.521
vessels
M/V AMAZON WARRIOR · 66 messagesM/V GECO EAGLE · 153 messagesM/V VENTURER · 18 messagesM/V WESTERN PATRIOT · 240 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 12 AUG THRU 31 MAR 17
   BY M/V GECO EAGLE, M/V AMAZON WARRIOR,
   M/V WESTERN PATRIOT AND M/V VENTURER TOWING
   14 9000 METER LONG CABLES
   IN AREA BOUND BY
   28-08.0N 091-32.0W, 28-08.1N 089-30.7W,
   27-24.1N 089-30.6W, 27-24.1N 091-31.9W.
   SEVEN MILE BERTH REQUESTED.
2. 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.
Area bound by
Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
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.
CANCEL THIS MSG
The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · cable & pipeline work

101 within 180 nm since 2004 · 1 in the last 12 months · 0 listed in force now

04
05
10
15
20
25
26

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

J
F
M
A
M
J
J
A
S
O
N
D

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

24 cable & pipeline work listed in force · see all

Record snapshot 2026-10-02 13:43Z; 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.