Seismic survey in progress until further notice by M/V nordic explorer towing 10000 meter long cable in area…
Ionian Sea · HYDROLANT 2843/12
What this record establishes
Archived notice · 2012-12-22 11:43Z
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) · GREEK NAVTEX KERKYRA 318/12 291500Z NOV 12.. Issued 2012-12-02 01:11Z. 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
- issued
- 2012-12-02 01:11Z
- status
- Archived notice
- authority
- GREEK NAVTEX KERKYRA 318/12 291500Z NOV 12.
- issued by
- GREEK NAVTEX KERKYRA
- sea
- Ionian Sea
- position
- 38.786, 19.519
- vessel
- M/V NORDIC EXPLORER · 92 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
IONIAN SEA. 1. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V NORDIC EXPLORER TOWING 10000 METER LONG CABLE IN AREA BOUND BY 40-02.3N 018-58.9E, 40-04.3N 019-07.9E, 39-52.9N 019-49.2E, 38-58.8N 020-38.0E, 38-28.2N 020-32.3E, 37-55.5N 019-54.7E, 37-34.8N 018-21.3E, 38-29.9N 018-43.9E, 38-59.3N 018-53.2E. EIGHT MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 2777/12.
Reading this warning
- Seismic survey
- A survey that maps the rock beneath the seabed with sound pulses from air guns, recorded on streamers kilometres long.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- Towed array / streamer
- Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
- Tow / towing
- A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
- 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.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
Collected reports in this area · cable & pipeline work
35 within 180 nm since 1998 · 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.
- Cable operations 211800Z to 302200Z apr by cableship rebecca along tracklines joining: a. 37-44.50N…2023-04-21
- Cable operations 01 thru 30 sep by cableship blue ship and cableship ocean link in area bound by 40-47.57N…2019-09-06
- Cable operations 04 mar to 31 may by M/V castor 10, M/V ocean link, M/V mimar sinan, and M/V francesco di…2019-02-27
- Cable operations in progress until 22 apr by cableship antonio meucci in vicinity of tracklines between: a.…2018-05-20
- Survey operations 160600Z to 200900Z may by M/V aigaio in area between 36-50.5N 36-49.5N and 021-37.5E…2018-05-16
- Survey operations 160600Z to 200900Z may by: a. M/V aigaio in area between 36-50.5N 36-49.5N and 021-37.5E…2018-05-15
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
24 cable & pipeline work listed in force · see all
Record snapshot 2026-10-02 02:08Z; source collection times vary.
Cable ops
Cable laying, pipeline and seismic operations. All current cable & pipeline work →
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.