Underwater operations 16 dec thru 31 jan 05 in area bound by 37-52.5N 015-51.0E, 37-54.5N 016-06.5E,…
Ionian Sea · HYDROLANT 1995/04
What this record establishes
Archived notice · 2005-01-17 18:24Z
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 578/04 131455A DEC 04.. Issued 2004-12-14 19:01Z. 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
- Ionian 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.
Related notices and cancellation links
- Cancel HYDROLANT 1995/04, 2066/04, and this msglater cancellation notice
- issued
- 2004-12-14 19:01Z
- status
- Archived notice
- authority
- MARISICILIA 578/04 131455A DEC 04.
- issued by
- MARISICILIA
- sea
- Ionian Sea
- position
- 36.595, 17.117
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. UNDERWATER OPERATIONS 16 DEC THRU 31 JAN 05 IN AREA BOUND BY 37-52.5N 015-51.0E, 37-54.5N 016-06.5E, 35-08.0N 018-30.0E, 35-08.0N 018-18.0E. 2. CANCEL THIS MSG 01 FEB 05.
Reading this warning
- Underwater operations
- Divers or remotely operated vehicles are working below a vessel that cannot easily move out of the way.
- 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.
Collected reports in this area · survey operations
190 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 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
- Survey operations in progress until 15 jan by M/V sw cook towing one 12000 meter long cable in area bound by…2022-01-14
- 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
Worldwide in the collected sources
56 survey operations listed in force · see all
Record snapshot 2026-10-01 22:37Z; 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.