Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. in progress along trackline between…
North Atlantic Ocean · HYDROLANT 1873/12
What this record establishes
Archived notice · 2012-08-20 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 1106/12 141043Z AUG 12.. Issued 2012-08-15 07:46Z. 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.
Related notices and cancellation links
Current notices and reporting history in the North Atlantic Ocean →
- issued
- 2012-08-15 07:46Z
- status
- Archived notice
- authority
- NAVAREA V N 1106/12 141043Z AUG 12.
- NAVAREA
- NAVAREA V · named as the source of this relay
- issued by
- NAVAREA V N
- sea
- North Atlantic Ocean
- position
- 5.284, -47.391
- 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
05-48.78N 048-09.85W AND 04-44.22N 046-56.68W.
B. 16 AUG ALONG TRACKLINE BETWEEN
05-45.70N 047-58.13W AND 04-48.27N 046-53.10W.
C. 17 AUG ALONG TRACKLINE BETWEEN
05-45.70N 047-46.13W AND 04-48.27N 046-53.10W.
D. 18 AUG ALONG TRACKLINE BETWEEN
05-42.62N 047-46.43W AND 04-52.35N 046-49.53W.
E. 19 AUG ALONG TRACKLINE BETWEEN
05-42.62N 047-46.43W AND 04-52.35N 046-49.53W.
SEVEN MILE BERTH REQUESTED.
2. CANCEL THIS MSG 20 AUG 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.
Collected reports in this area · cable & pipeline work
319 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.
- Cable operations in progress until further notice in area bound by 05-38.66N 047-18.27W, 06-36.00N…2020-01-29
- Cable operations in progress until further notice by M/V lida along trackline joining 04-40.14N 046-13.93W,…2020-01-20
- Cable operations 24 and 25 jan by by M/V lida along trackline joining 04-40.14N 046-13.93W, 05-38.66N…2020-01-20
- Seismic survey in progress until 10 may by M/V bgp challenger and M/V sea moby dick towing 12000 meter long…2016-05-06
- Seismic survey in progress until 07 may by M/V bgp challenger and M/V sea moby dick towing 12000 meter long…2016-05-04
- Seismic survey in progress until 01 may by M/V bgp challenger and M/V sea moby dick towing 12000 meter long…2016-04-29
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 10:18Z; 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.