Seismic survey in progress until further notice by M/V svitzer meridian towing two mile long cable in area…
North Sea · HYDROLANT 33/03
What this record establishes
Archived notice · 2003-02-17 12:10Z
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 I 3/03 051706Z JAN 03; NAVAREA III 7/03 051648Z JAN 03; WZ 39/03 051644Z JAN 03. Issued 2003-01-05 20:21Z. 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
- North 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
- Ile rachgoun light 35-19.5N 001-28.7W unlitcancelled by this notice
- Calf of man light 54-03N 004-50W unreliablecancelled by this notice
- issued
- 2003-01-05 20:21Z
- status
- Archived notice
- authority
- NAVAREA I 3/03 051706Z JAN 03; NAVAREA III 7/03 051648Z JAN 03; WZ 39/03 051644Z JAN 03
- NAVAREA
- NAVAREA I · named as the source of this relay
- sea
- North Sea
- position
- 57.552, -0.992
- vessel
- M/V SVITZER MERIDIAN · 6 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V SVITZER MERIDIAN TOWING TWO MILE LONG CABLE IN AREA BOUND BY 57-56N 002-03W, 57-59N 000-26W, 57-32N 000-13E, 56-54N 001-24W. WIDE BERTH REQUESTED. 2. CANCEL HYDROLANT 2862/02(52). 3. CANCEL HYDROLANT 28/03(36), AID RESTORED.
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
246 within 180 nm since 1998 · 1 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 in progress until further notice by cableship sovereign in 59-49.00N 002-58.40W2026-08-27
- Seismic survey in progress by M/V kommandor towing 1200 meter long cable in area bound by 57-05.10N…2022-11-04
- Cable operations in progress until further notice by cableship cable vigilance in vicinity 59-56.30N…2022-10-26
- Cable operations in progress until further notice by cableship sovereign in vicinity 57-24.4N 001-43.3W2021-07-19
- Cable operations in progress until further notice by cableship sovereign in vicinity 57-24.4N 001-43.6W2021-07-06
- Cable operations in progress until further notice by cableship ile daix in vicinity 59-51.1N 003-29.8W2021-05-26
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
23 cable & pipeline work listed in force · see all
Record snapshot 2026-10-04 01:55Z; 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.