Cable ops

Seismic survey in progress until 07 jun by M/V ramform vanguard and M/V sanco sea towing eight 6500 meter…

HYDROLANT 1637/01

issued
2001-06-06 05:50Z
status
cancelled 2001-06-08 00:00Z (archive)
cancels
HYDROLANT 1625/01
authority
NAVAREA V 982/01 060402Z JUN 01
sea
South Atlantic Ocean
position
-23.253, -41.147
source
nga_json · first seen 2026-08-17 13:38Z

Original warning text

1. SEISMIC SURVEY IN PROGRESS UNTIL 07 JUN BY
   M/V RAMFORM VANGUARD AND M/V SANCO SEA TOWING
   EIGHT 6500 METER LONG CABLES IN AREA BOUND BY
   23-00S 041-22W, 23-03S 041-28W, 23-11S 041-20W,
   23-31S 040-58W, 23-22S 040-52W.
   FOUR MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 1625/01.
3. CANCEL THIS MSG 08 JUN.

This area · cable & pipeline work

2200 within 180 nm since 1998 · 0 in the last 12 months · 0 in force now

98
00
05
10
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23

Season · when cable & pipeline work happen here

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A
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.