Cable ops

Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. in progress along trackline between…

North Atlantic Ocean · HYDROLANT 2232/12

What this record establishes

Archived notice · 2012-10-01 00:01Z

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 V N 1301/12 250012Z SEP 12.. Issued 2012-09-25 00:48Z. 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: North 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.

Current notices and reporting history in the North Atlantic Ocean →

issued: 2012-09-25 00:48Z
status: Archived notice
authority: NAVAREA V N 1301/12 250012Z SEP 12.
NAVAREA: NAVAREA V · named as the source of this relay
issued by: NAVAREA V N
sea: North Atlantic Ocean
position: 4.986, -48.267
vessel: M/V HAWK EXPLORER · 214 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

BRAZIL-NORTH COAST.
1. SEISMIC SURVEY BY M/V HAWK EXPLORER TOWING
   5.4 MILE LONG CABLES:
   A. IN PROGRESS ALONG TRACKLINE BETWEEN
      04-54.77N 048-42.68W AND 04-58.83N 048-39.13W.
   B. 26 SEP ALONG TRACKLINE BETWEEN
      06-15.80N 050-06.98W AND 06-19.92N 050-03.48W.
   C. 27 SEP ALONG TRACKLINE BETWEEN
      05-32.12N 047-30.35W AND 03-54.40N 048-56.03W.
   D. 28 SEP ALONG TRACKLINE BETWEEN
      05-39.28N 047-38.48W AND 04-01.02N 049-04.60W.
   E. 29 SEP ALONG TRACKLINE BETWEEN
      05-37.27N 047-39.55W AND 04-58.83N 048-39.13W.
   F. 30 SEP ALONG TRACKLINE BETWEEN
      05-02.90N 048-35.55W AND 05-39.28N 047-38.48W.
   SEVEN MILE BERTH REQUESTED.
2. CANCEL THIS MSG 01 OCT 12.

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.
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

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

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

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 09:01Z; 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.