Cable ops

Seismic survey in progress until further notice by M/V ramform challenger towing 12 7500 meter long cables…

North Sea · HYDROLANT 1211/15

issued
2015-05-18 04:55Z
status
cancelled 2015-06-06 19:07Z (archive)
cancels
HYDROLANT 636/15
authority
NAVAREA I 132/15 180230Z MAY 15.
sea
North Sea
position
59.278, 0.847
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

NORTH SEA.
DNC 20.
1. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE
   BY M/V RAMFORM CHALLENGER TOWING 12
   7500 METER LONG CABLES IN AREA BOUND BY
   59-41N 000-31E, 59-41N 001-11E,
   59-05N 001-11E, 58-49N 000-56E,
   58-49N 000-34E.
   SIX MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 636/15.

This area · cable & pipeline work

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

98
00
05
10
15
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23

Season · when cable & pipeline work happen here

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M
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J
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month of issue, all years in the archive

Timeline

Nearby now · 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.