Seismic survey in progress until 31 jan 10 by M/V cgg amadeus towing eight 6000 meter long cables in area…
Gulf of Mexico · NAVAREA IV 512/09
What this record establishes
Archived notice · 2009-12-16 04:36Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · CGG AMADEUS 221508Z NOV 09.. Issued 2009-11-22 18:23Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Gulf of Mexico. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.
Related notices and cancellation links
Current notices and reporting history in the Gulf of Mexico →
- issued
- 2009-11-22 18:23Z
- status
- Archived notice
- authority
- CGG AMADEUS 221508Z NOV 09.
- NAVAREA
- NAVAREA IV
- issued by
- CGG AMADEUS
- sea
- Gulf of Mexico
- position
- 21.998, -85.548
- vessel
- M/V CGG AMADEUS · 180 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SEISMIC SURVEY IN PROGRESS UNTIL 31 JAN 10 BY M/V CGG AMADEUS TOWING EIGHT 6000 METER LONG CABLES IN AREA BOUND BY 22-17N 085-24W, 22-03N 085-13W, 21-43N 085-42W, 21-56N 085-53W. WIDE BERTH REQUESTED. 2. CANCEL THIS MSG 01 FEB 10.
Reading this warning
- Seismic survey
- A survey that maps the rock beneath the seabed with sound pulses from air guns, recorded on streamers kilometres long.
- Towed array / streamer
- Equipment towed a long way behind a vessel — sonar, a hydrophone cable, a sampling sled — invisible at the surface.
- Tow / towing
- A vessel towing another vessel, a barge or a structure — slow, hard to manoeuvre, and with a long line between.
- Area bound by
- Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
- Wide berth requested
- Keep well clear — or, when a distance is given ("TWO MILE BERTH REQUESTED"), at least that far away.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
Collected reports in this area · cable & pipeline work
19 within 180 nm since 2001 · 0 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Cable operations 12 mar thru 11 apr by cableship layla along tracklines joining a. 21-17.22N 086-25.35W,…2020-03-07
- Seismic survey operations 02 nov to 28 feb 17 by M/V bgp pioneer towing 7 mile long cable in area bound by…2016-10-31
- Seismic survey 18 aug until further notice by M/V northern explorer towing 12000 meter long cable in area…2016-08-16
- Cable laying operations 11 thru 13 dec by cableship ile de batz with submersible along trackline joining…2013-12-11
- Cable laying operations in progress until 28 nov by cableship ile de batz with submersible along trackline…2013-11-21
- Cable laying operations in progress until 04 oct by cableship ile de brehat along trackline between…2013-09-29
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
- NAVAREA IV mobile offshore drilling units positions at 241615Z sep: a. agosto 12 19-23.0N 092-03.1WSurveys · 75.3 nm
- Isla contoy light 21-31.60N 086-48.30W unlitNav aids · 75.6 nm
- Puerto morelos light 20-50.2N 086-55.0W unreliableNav aids · 103.5 nm
Worldwide in the collected sources
23 cable & pipeline work listed in force · see all
Record snapshot 2026-10-02 15:34Z; source collection times vary.
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.