Cable ops

Seismic survey in progress until 102259Z oct by M/V geco triton towing eight 5200 meter long cables in area…

North Sea · HYDROLANT 1144/11

issued
2011-07-15 02:18Z
status
cancelled 2011-10-10 23:59Z (archive)
self-cancels
2011-10-10 23:59Z
cancels
HYDROLANT 1087/11
authority
NAVAREA I 182/11 142355Z JUL 11.
sea
North Sea
position
56.972, 1.872
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH SEA.
1. SEISMIC SURVEY IN PROGRESS UNTIL 102259Z OCT
   BY M/V GECO TRITON TOWING EIGHT 5200 METER
   LONG CABLES IN AREA BOUND BY
   56-51N 001-53E, 56-57N 001-38E,
   57-06N 001-53E, 56-59N 002-06E.
   WIDE BERTH REQUESTED.
2. CANCEL HYDROLANT 1087/11.
3. CANCEL THIS MSG 102359Z OCT.

This area · cable & pipeline work

240 within 180 nm since 1999 · 0 in the last 12 months · 0 in force now

99
00
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10
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23

Season · when cable & pipeline work happen here

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month of issue, all years in the archive

Timeline

Nearby now · within 120 nm

Nothing else in force within 120 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.