Surveys

Survey operations 13 thru 21 feb by M/V havila phoenix with submersible along trackline joining 35-56.56N…

Mediterranean Sea - Eastern Basin · HYDROLANT 425/22

What this record establishes

Archived notice · 2022-02-22 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 III 73/22 111200Z FEB 22.. Issued 2022-02-11 17:18Z. 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: Mediterranean Sea - Eastern Basin. 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 Mediterranean Sea - Eastern Basin →

issued: 2022-02-11 17:18Z
status: Archived notice
authority: NAVAREA III 73/22 111200Z FEB 22.
NAVAREA: NAVAREA III · named as the source of this relay
sea: Mediterranean Sea - Eastern Basin
position: 36.300, 14.529
vessel: M/V HAVILA PHOENIX · 23 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

EASTERN MEDITERRANEAN SEA.
MALTA.
DNC 09.
1. SURVEY OPERATIONS 13 THRU 21 FEB BY
   M/V HAVILA PHOENIX WITH SUBMERSIBLE ALONG
   TRACKLINE JOINING
   35-56.56N 014-26.96E, 35-56.71N 014-27.02E,
   35-56.81N 014-27.00E, 35-57.39N 014-27.22E,
   35-59.45N 014-27.26E, 36-02.55N 014-29.36E,
   36-02.64N 014-30.63E, 36-12.64N 014-33.28E,
   36-22.91N 014-33.90E, 36-27.50N 014-32.27E,
   36-30.98N 014-30.82E, 36-35.04N 014-30.80E,
   36-37.78N 014-32.54E, 36-39.64N 014-34.24E.
   ONE MILE BERTH REQUESTED.
2. CANCEL THIS MSG 22 FEB 22.

Reading this warning

DNC (Digital Nautical Chart): A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
Survey operations: A research or survey vessel is mapping the seabed or water column, often while towing equipment.
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 · survey operations

302 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

Submarine cable and rov works days 280000 UTC sep 26 to 071000 UTC oct 26 at points: 36-12.78N 015-52.58E…Cable ops · 62.9 nm

Worldwide in the collected sources

56 survey operations listed in force · see all

Record snapshot 2026-10-01 21:45Z; 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.