Oceanographic operations 06 thru 17 jul by M/V poseidon in areas: a. bound by 38-41.0N 015-05.0E, 38-40.0N…
Tyrrhenian Sea · HYDROLANT 1256/06
What this record establishes
Archived notice · 2006-07-18 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 238/06 041055Z JUL 06.. Issued 2006-07-04 13:04Z. 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
- 2006-07-04 13:04Z
- status
- Archived notice
- authority
- MARISICILIA 238/06 041055Z JUL 06.
- issued by
- MARISICILIA
- sea
- Tyrrhenian Sea
- position
- 38.651, 15.114
- vessel
- M/V POSEIDON · 64 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. OCEANOGRAPHIC OPERATIONS 06 THRU 17 JUL
BY M/V POSEIDON IN AREAS:
A. BOUND BY
38-41.0N 015-05.0E, 38-40.0N 015-04.0E,
38-39.0N 015-05.0E, 38-38.0N 015-05.0E,
38-37.0N 015-09.0E, 38-40.0N 015-09.0E.
B. BETWEEN 39-00.0N 39-30.0N AND 014-10.0E 014-40.0E.
C. BETWEEN 39-37.0N 39-25.0N AND 014-30.0E 015-10.0E.
D. BOUND BY
38-39.4N 015-06.1E, 38-38.8N 015-06.1E,
38-38.5N 015-06.5E, 38-38.5N 015-08.1E,
38-39.4N 015-08.1E.
ONE MILE BERTH REQUESTED.
2. CANCEL THIS MSG 18 JUL.
Reading this warning
- 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.
Collected reports in this area · survey operations
228 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.
- Underwater operations in progress until further notice by M/V joides resolution in: a. 40-11.03N 012-42.49E2024-02-16
- Underwater operations by M/V handin tide with submersible: a. 01 thru 05 jun in area within ten miles of…2022-05-27
- Survey operations 13 thru 21 feb by M/V havila phoenix with submersible along trackline joining 35-56.56N…2022-02-11
- Underwater operations by M/V handin tide: a. 01 thru 05 sep in area within ten miles of 37-30-00N 015-23-02E2021-08-30
- Underwater operations 15 thru 19 jul notice by M/V hercules in area bound by 36-19.50N 014-53.28E,…2021-07-14
- Survey operations in progress until 22 jul in areas bound by: a. 35-54.54N 012-48.96E, 35-54.54N 012-55.38E,…2021-06-25
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 13:44Z; 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.