Cable ops
Seismic survey in progress until further notice by M/V ramform challenger towing ten 6000 meter long cables…
Eastern North Atlantic · Sierra Leone · HYDROLANT 1506/10
- issued
- 2010-08-07 15:25Z
- status
- cancelled 2010-10-03 06:34Z (archive)
- authority
- NAVAREA II 308/10 07 AUG 10.
- sea
- North Atlantic Ocean
- position
- 8.841, -14.799
- source
- nga_json · first seen 2026-08-17 13:38Z
Original warning text
EASTERN NORTH ATLANTIC. SIERRA LEONE. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V RAMFORM CHALLENGER TOWING TEN 6000 METER LONG CABLES IN AREA BOUND BY 09-24.5N 015-09.5W, 09-11.0N 015-23.5W, 08-16.5N 014-26.0W, 08-29.0N 014-12.0W. SIX MILE BERTH REQUESTED.
This area · cable & pipeline work
11 within 180 nm since 2010 · 0 in the last 12 months · 0 in force now
10
14
- Seismic survey 010001Z dec to 152359Z feb 15 by M/V polarcus alima towing ten 7500 meter long cables in area…2014-11-29
- Seismic survey in progress until 161200Z sep by M/V polarcus alima towing 12 8100 meter long cables in area…2014-09-13
- Seismic survey 260001Z aug to 122359Z sep by M/V polarcus alima towing 12 8100 meter long cables in area…2014-08-25
- Seismic survey in progress until 31 jan 12 by M/V oceanic endeavour towing 12 9500 meter long cables in area…2011-11-28
- Cable operations in progress until 25 oct by cableship ile de sein along trackline joining 08-27.38N…2011-10-10
- Seismic survey in progress until further notice by M/V geo caribbean towing 12 five mile long cables in area…2011-09-27
Season · when cable & pipeline work happen here
J
F
M
A
M
J
J
A
S
O
N
D
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.