Cable ops

Seismic survey by M/V western regent towing ten 8800 meter long cables: a. 18 nov along trackline between…

South Atlantic Ocean · HYDROLANT 2905/13

What this record establishes

Archived notice · 2013-11-19 15:21Z

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) · NAVAREA VI 516/13 180205Z NOV 13.. Issued 2013-11-18 02:35Z. 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
South Atlantic Ocean. The map shows the reported line or operation extent; it is not a vessel track. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the South Atlantic Ocean →

issued
2013-11-18 02:35Z
status
Archived notice
authority
NAVAREA VI 516/13 180205Z NOV 13.
NAVAREA
NAVAREA VI · named as the source of this relay
sea
South Atlantic Ocean
position
-36.000, -51.849
vessel
M/V WESTERN REGENT · 199 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN SOUTH ATLANTIC.
URUGUAY.
1. SEISMIC SURVEY BY M/V WESTERN REGENT TOWING TEN
   8800 METER LONG CABLES:
   A. 18 NOV ALONG TRACKLINE BETWEEN
      36-14.43S 051-48.42W AND 36-31.03S 051-51.75W.
   B. 18 NOV ALONG TRACKLINE BETWEEN
      36-13.67S 051-41.90W AND 36-09.47S 051-46.03W.
   C. 18 NOV ALONG TRACKLINE BETWEEN
      35-57.12S 051-59.40W AND 35-43.32S 052-12.82W.
   D. 18 AND 19 NOV ALONG TRACKLINE BETWEEN
      35-34.25S 052-06.78W AND 36-17.68S 051-24.23W.
   E. 19 AND 20 NOV ALONG TRACKLINE BETWEEN
      36-21.40S 051-31.28W AND 35-37.92S 052-13.80W.
   EIGHT MILE BERTH REQUESTED.
2. CANCEL THIS MSG 21 NOV 13.

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.
Track line joining
Introduces a route through a series of positions — a cable route, a tow's track or a survey line.
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

497 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

99
00
05
10
15
20

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 05:48Z; 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.