Cable ops

Seismic survey in progress until 100259Z aug by M/V western monarch towing three mile long cables in area…

Brazil-southeast Coast · HYDROLANT 1237/11

issued: 2011-08-05 04:50Z
status: cancelled 2011-08-10 03:59Z (archive)
self-cancels: 2011-08-10 03:59Z
authority: NAVAREA V 631/11 050023Z AUG 11.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

BRAZIL-SOUTHEAST COAST.
1. SEISMIC SURVEY IN PROGRESS UNTIL 100259Z AUG
   BY M/V WESTERN MONARCH TOWING THREE
   MILE LONG CABLES IN AREA BETWEEN
   21-54S 22-21S AND 040-12W 039-30W.
   SIX MILE BERTH REQUESTED.
2. CANCEL THIS MSG 100359Z AUG.

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.