Seismic survey in progress until further notice by M/V hugin explorer and M/V munin explorer in area bound…
Norwegian Sea · HYDROLANT 1324/11
What this record establishes
Archived notice · 2011-09-05 14:13Z
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) · NAVAREA I 217/11 200730Z AUG 11.. Issued 2011-08-20 09:54Z. 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
- Norwegian 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 1324/11 and this msg, operations completedlater cancellation notice
Current notices and reporting history in the Norwegian Sea →
- issued
- 2011-08-20 09:54Z
- status
- Archived notice
- authority
- NAVAREA I 217/11 200730Z AUG 11.
- NAVAREA
- NAVAREA I · named as the source of this relay
- sea
- Norwegian Sea
- position
- 63.908, 2.400
- vessels
- M/V HUGIN EXPLORER · 20 messagesM/V MUNIN EXPLORER · 23 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
NORWEGIAN SEA. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V HUGIN EXPLORER AND M/V MUNIN EXPLORER IN AREA BOUND BY 63-55.4N 001-01.5E, 63-45.5N 001-04.1E, 63-53.6N 003-46.5E, 64-03.5N 003-43.9E. TWO MILE BERTH REQUESTED.
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.
- 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.
Collected reports in this area · cable & pipeline work
69 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.
- Seismic survey in progress by M/V amazon conqueror towing 12 X 10000 metre long cables in area bound by: a:…2026-08-28
- Cable operations 25 jul thru 30 oct by M/V nusantara explorer along trackline joining 52-59.18N 158-50.53E,…2022-07-19
- Seismic survey 130001Z to 141200Z nov by M/V bgp prospector towing 8000 meter long cable in area bound by…2016-11-12
- Cable laying operations in progress until further notice by M/V wg tasman in area bound by 61-08.7N…2016-07-10
- Seismic survey in progress until further notice by M/V ramform tethys towing 16 9000 meter long cables in…2016-06-19
- Seismic survey in progress until further notice by M/V ramform tethys towing 16 9000 meter long cables in…2016-06-19
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
23 cable & pipeline work listed in force · see all
Record snapshot 2026-10-04 04:08Z; 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.