Cable ops

Seismic survey in progress until 052259Z oct by M/V ramform viking towing 12 6700 meter long cables in area…

North Sea · HYDROLANT 1479/11

issued: 2011-09-15 06:26Z
status: cancelled 2011-09-21 15:50Z (archive)
self-cancels: 2011-10-05 23:59Z
cancels: HYDROLANT 1212/11
authority: NAVAREA I 247/11 150532Z SEP 11.
sea: North Sea
position: 58.503, -0.406
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH SEA.
1. SEISMIC SURVEY IN PROGRESS UNTIL 052259Z OCT
   BY M/V RAMFORM VIKING TOWING 12 6700 METER
   LONG CABLES IN AREA BOUND BY
   58-12.8N 000-36.5W, 58-23.5N 001-09.0W,
   58-47.5N 000-12.5W, 58-37.0N 000-20.5E.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 1212/11.
3. CANCEL THIS MSG 052359Z OCT.

This area · cable & pipeline work

237 within 180 nm since 1998 · 0 in the last 12 months · 0 in force now

Season · when cable & pipeline work happen here

month of issue, all years in the archive

Timeline

Seismic survey in progress until 15 sep by M/V ramform viking towing 12 6000 meter long cables in area…cancels · 2011-07-31
Seismic survey in progress until 15 sep by M/V ramform viking towing 12 6000 meter long cables in area…replaced · 2011-07-31
Seismic survey in progress until 12 oct by M/V ramform viking towing 12 6700 meter long cables in area bound…cancelled by · 2011-09-21

Nearby now · within 120 nm

Noup head light 59-19.90N 003-04.20W range reduced to 12 milesNav aids · 96.4 nm
Survey operations in progress until further notice by M/V ramform hyperion towing ten 2740 meter long cablesSurveys · 97.7 nm

Worldwide now

40 cable & pipeline work in force · see all

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.