Cable ops

Seismic survey in progress until 230159Z dec by M/V western monarch towing three mile long cables and M/V…

Brazil-southeast Coast · HYDROLANT 2181/11

issued: 2011-12-17 02:12Z
status: cancelled 2011-12-23 02:59Z (archive)
self-cancels: 2011-12-23 02:59Z
cancels: HYDROLANT 2176/11
authority: NAVAREA V E 1224/11 170116Z DEC 11.
source: nga_json · first seen 2026-08-17 13:38Z

Original warning text

BRAZIL-SOUTHEAST COAST.
1. SEISMIC SURVEY IN PROGRESS UNTIL 230159Z DEC BY
   M/V WESTERN MONARCH TOWING THREE MILE LONG CABLES
   AND M/V NPS GECO DIAMOND TOWING 250 METER LONG CABLE
   IN AREA BETWEEN
   21-54S 22-21S AND 040-12W 039-30W.
   SIX MILE BERTH REQUESTED.
2. CANCEL HYDROLANT 2176/11.
3. CANCEL THIS MSG 230259Z DEC.

Timeline

Seismic survey in progress until 230159Z dec by M/V western monarch and M/V nps geco diamond towing 250…cancels · 2011-12-17
Seismic survey in progress until 230159Z dec by M/V western monarch and M/V nps geco diamond towing 250…replaced · 2011-12-17

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.