Surveys

Survey operations 31 may until further notice by M/V sanco atlantic towing 10050 meter long cable in area…

North Atlantic Ocean · NAVAREA IV 459/19

What this record establishes

Archived notice · 2020-10-23 14:38Z

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) · SANCO ATLANTIC 301446Z MAY 19.. Issued 2019-05-30 15:21Z. 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 an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the North Atlantic Ocean →

issued: 2019-05-30 15:21Z
status: Archived notice
authority: SANCO ATLANTIC 301446Z MAY 19.
NAVAREA: NAVAREA IV
issued by: SANCO ATLANTIC
sea: North Atlantic Ocean
position: 43.421, -48.581
vessel: M/V SANCO ATLANTIC · 11 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
CANADA.
SURVEY OPERATIONS 31 MAY UNTIL FURTHER NOTICE BY
M/V SANCO ATLANTIC TOWING 10050 METER LONG CABLE
IN AREA BOUND BY
44-55N 048-46W, 42-05N 050-22W,
42-05N 047-59W, 44-55N 047-04W.
EIGHT MILE BERTH REQUESTED.

Reading this warning

Survey operations: A research or survey vessel is mapping the seabed or water column, often while towing equipment.
Until further notice: The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
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.

All warning terms →

Collected reports in this area · survey operations

7 within 180 nm since 2017 · 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

55 survey operations listed in force · see all

Record snapshot 2026-10-02 10:21Z; source collection times vary.

Surveys

Hydrographic and scientific survey vessels, often towing long arrays. All current survey operations →

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.