Seismic survey in progress until further notice by M/V western regent towing 8400 meter long cable in area…
North Sea · HYDROLANT 1918/15
What this record establishes
Archived notice · 2015-08-07 21:13Z
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) · WZ 861/15 060045Z AUG 15.. Issued 2015-08-06 01:13Z. 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
- issued
- 2015-08-06 01:13Z
- status
- Archived notice
- authority
- WZ 861/15 060045Z AUG 15.
- issued by
- WZ
- sea
- North Sea
- position
- 54.785, -0.143
- vessel
- M/V WESTERN REGENT · 199 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORTH SEA. ENGLAND-EAST COAST. DNC 20. 1. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V WESTERN REGENT TOWING 8400 METER LONG CABLE IN AREA BOUND BY 55-00.0N 000-53.0W, 54-33.5N 000-58.0E, 54-32.8N 000-50.7E, 54-54.8N 000-57.2W. SIX MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 1904/15.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- 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
453 within 180 nm since 1999 · 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 pierre de fermat with submersible in…2026-09-20
- Cable operations in progress until further notice by cableship cable vigilance with submersible in area…2023-12-07
- Pipeline operations in progress until further notice by M/V aht elisa towing 1300 meter long pipeline along…2023-09-11
- Cable operations 041400Z thru 160001Z sep by cableship ile d'ouessant in area bound by 53-48.60N 004-17.40W,…2023-09-03
- Seismic survey in progress by M/V kommandor towing 1200 meter long cable in area bound by 57-05.10N…2022-11-04
- Underwater operations in progress until further notice by cableship responder along trackline joining…2022-09-07
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 14:27Z; 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.