Cable ops

Seismic survey in progress until further notice by M/V oceanic challenger towing ten 5250 meter long cables…

North Sea · HYDROLANT 914/11

issued: 2011-05-31 18:52Z
status: cancelled 2011-10-08 09:18Z (archive)
authority: NAVAREA I 143/11 311658Z MAY 11.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH SEA.
SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE
BY M/V OCEANIC CHALLENGER TOWING TEN
5250 METER LONG CABLES IN AREA BETWEEN
57-39N 58-17N AND 001-17E 001-26W.
WIDE BERTH REQUESTED.

Timeline

HYDROLANT warnings in force 080800Z oct 11cancelled by · 2011-10-08

Nearby now · within 120 nm

Nothing else in force within 120 nm.

Worldwide now

35 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.