Surveys

Survey operations 16 thru 26 oct by M/V universitatis in areas bound by a. 38-08.50N 013-29.00E, 38-08.45N…

Tyrrhenian Sea · HYDROLANT 1665/04

What this record establishes

Archived notice · 2004-10-27 00:00Z

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) · MARISICILIA 457/04 130830Z OCT 04.. Issued 2004-10-13 17:41Z. 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: Tyrrhenian Sea. 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 Tyrrhenian Sea →

issued: 2004-10-13 17:41Z
status: Archived notice
authority: MARISICILIA 457/04 130830Z OCT 04.
issued by: MARISICILIA
sea: Tyrrhenian Sea
position: 38.264, 12.877
vessel: M/V UNIVERSITATIS · 20 messages
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

1. SURVEY OPERATIONS 16 THRU 26 OCT BY
   M/V UNIVERSITATIS IN AREAS BOUND BY
   A. 38-08.50N 013-29.00E,
      38-08.45N 013-33.50E,
      38-18.50N 013-33.50E,
      38-18.30N 013-20.00E.
   B. 38-07.30N 012-50.07E,
      38-12.50N 013-04.00E,
      38-23.30N 013-04.00E,
      38-23.30N 012-46.30E,
      38-13.50N 012-46.30E.
   C. 37-51.50N 012-10.10E,
      37-51.30N 012-15.50E,
      38-00.20N 012-12.45E,
      38-04.00N 012-12.10E,
      38-04.00N 012-07.30E,
      38-01.55N 012-03.05E,
      37-57.00N 012-08.55E.
   D. 38-03.00N 012-01.50E,
      37-59.50N 011-59.00E,
      37-55.40N 012-01.00E,
      37-56.10N 012-07.25E,
      38-01.20N 012-04.20E.
   E. 38 46,50N 013 08,10E,
      38-46.50N 013-13.10E,
      38-41.20N 013-17.20E,
      38-37.50N 013-13.30E,
      38-38.30N 013-08.35E,
      38-42.30N 013-02.00E.
2. CANCEL THIS MSG 27 OCT.

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.
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

300 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

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

54 survey operations listed in force · see all

Record snapshot 2026-10-02 14:50Z; 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.