Surveys

Survey operations 18 dec thru 31 jan 20 by M/V havila subsea with submersible: a. in area bound by 10-05.99N…

North Atlantic Ocean · NAVAREA IV 1088/19

What this record establishes

Archived notice · 2019-12-26 20:00Z

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) · TRINIDAD AND TOBAGO 106/19 171442Z DEC 19.. Issued 2019-12-17 15:26Z. 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 parsed report position is 10.030, -60.630. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.

Related notices and cancellation links

Current notices and reporting history in the North Atlantic Ocean →

issued
2019-12-17 15:26Z
status
Archived notice
authority
TRINIDAD AND TOBAGO 106/19 171442Z DEC 19.
NAVAREA
NAVAREA IV
issued by
TRINIDAD AND TOBAGO
sea
North Atlantic Ocean
position
10.030, -60.630
vessel
M/V HAVILA SUBSEA · 6 messages
source
NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
TRINIDAD.
1. SURVEY OPERATIONS 18 DEC THRU 31 JAN 20 BY
   M/V HAVILA SUBSEA WITH SUBMERSIBLE:
   A. IN AREA BOUND BY
      10-05.99N 060-18.51W, 10-06.71N 060-17.92W,
      10-06-16N 060-17.42W, 10-05.81N 060-17.42W,
      10-05.16N 060-17.38W, 10-01.80N 060-19.98W,
      10-01.21N 060-20.71W, 10-05.68N 060-18.13W.
   B. IN AREA BOUND BY
      09-55.69N 060-25.20W, 09-55.75N 060-27.48W,
      09-54.88N 060-31.91W, 09-55.19N 060-31.79W,
      09-56.04N 060-27.54W, 09-56.15N 060-25.61W,
      09-56.72N 060-25.17W, 09-56.65N 060-25.08W.
   C. IN AREA BOUND BY
      10-00.31N 060-48.56W, 10-04.40N 060-59.62W,
      10-04.75N 060-58.71W, 10-04.52N 060-58.12W,
      10-04.24N 060-57.78W, 10-00.49N 060-47.76W.
   D. IN AREA BOUND BY
      10-07.79N 061-00.11W, 10-07.98N 060-59.85W,
      10-08.27N 060-59.88W, 10-08.30N 060-59.73W,
      10-08.20N 060-59.63W, 10-08.01N 060-59.51W.
   E. IN 10-06.24N 060-59.22W.
   F. IN 10-05.49N 060-58.83W.
   WIDE BERTH REQUESTED.
2. CANCEL THIS MSG 01 FEB 20.

Reading this warning

Survey operations
A research or survey vessel is mapping the seabed or water column, often while towing equipment.
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.
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 · survey operations

172 within 180 nm since 2002 · 8 in the last 12 months · 1 listed in force now

02
05
10
15
20
25
26

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

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-01 16:40Z; 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.