Seismic survey in progress until further notice by M/V harrier explorer towing 8500 meter long cable in area…
Barentsz Sea · HYDROARC 170/11
What this record establishes
Archived notice · 2011-10-22 09:15Z
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 XIX 68/11 151832Z SEP 11.. Issued 2011-09-15 19:33Z. 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
- Barentsz 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
- 2011-09-15 19:33Z
- status
- Archived notice
- authority
- NAVAREA XIX 68/11 151832Z SEP 11.
- NAVAREA
- NAVAREA XIX · named as the source of this relay
- sea
- Barentsz Sea
- position
- 72.395, 25.156
- vessel
- M/V HARRIER EXPLORER · 85 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
ARCTIC. BARENTS SEA. 1. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V HARRIER EXPLORER TOWING 8500 METER LONG CABLE IN AREA BOUND BY 73-17.6N 018-09.7E, 73-01.1N 031-59.4E, 71-28.9N 031-59.6E, 71-46.9N 018-23.4E. SIX MILE BERTH REQUESTED. 2. CANCEL HYDROARC 157/11.
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.
- HYDROARC
- The U.S. long-range warning series for the Arctic Ocean.
Collected reports in this area · cable & pipeline work
55 within 180 nm since 2006 · 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 in progress until 05 nov by cableship ile de batz along tracklines joining: a. 72-22.4N…2021-10-16
- Cable operations in progress until 05 nov by cableship ile de batz along tracklines joining: a: 72-22.4N…2021-09-03
- Cable operations 080600Z may thru 282359Z jun by cableship ile de batz in vicinity of trackline joining…2021-05-06
- Seismic survey in progress until 20 nov by M/V bgp prospector towing ten 8000 meter long cables in area…2016-11-05
- Seismic survey in progress until 20 nov by M/V bgp prospector towing ten 8000 meter long cables in area…2016-11-04
- Seismic survey 20 sep thru 02 nov by M/V bgp prospector towing ten 8000 meter long cables in area bound by…2016-09-18
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 12:23Z; 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.