Surveys

Hydrographic survey by M/V thalassa: a. 18 jun along trackline between 58-47N 030-39W and 56-56N 027-18W

North Atlantic · NAVAREA IV 481/15

issued
2015-06-18 13:35Z
status
cancelled 2015-06-21 00:01Z (archive)
cancels
NAVAREA IV 473/15
authority
THALASSA 181246Z JUN 15.
position
59.317, -24.950
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH ATLANTIC.
1. HYDROGRAPHIC SURVEY BY M/V THALASSA:
   A. 18 JUN ALONG TRACKLINE BETWEEN
      58-47N 030-39W AND 56-56N 027-18W.
   B. 19 JUN ALONG TRACKLINE BETWEEN
      56-56N 027-18W AND 60-18N 021-00W.
   C. 20 JUN ALONG TRACKLINE BETWEEN
      60-18N 021-00W AND 63-01N 024-37W.
   WIDE BERTH REQUESTED.
2. CANCEL NAVAREA IV 473/15.
3. CANCEL THIS MSG 21 JUN 15.

This area · survey operations

7 within 180 nm since 2015 · 0 in the last 12 months · 0 in force now

Season · when survey operations happen here

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M
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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

73 survey operations in force · see all

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.