Seismic survey in progress until 021800Z dec by M/V western patriot, M/V venturer, M/V geco eagle towing 14…
Gulf of Mexico · NAVAREA IV 1002/16
What this record establishes
Archived notice · 2016-11-29 13:56Z
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) · GECO EAGLE 281940Z NOV 16.. Issued 2016-11-28 20:55Z. 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
- 2016-11-28 20:55Z
- status
- Archived notice
- self-cancels
- 2016-12-02 19:00Z
- authority
- GECO EAGLE 281940Z NOV 16.
- NAVAREA
- NAVAREA IV
- issued by
- GECO EAGLE
- sea
- Gulf of Mexico
- position
- 26.133, -91.079
- vessels
- M/V GECO EAGLE · 153 messagesM/V VENTURER · 18 messagesM/V WESTERN PATRIOT · 240 messagesM/V WG COLUMBUS · 47 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
GULF OF MEXICO. LOUISIANA. 1. SEISMIC SURVEY IN PROGRESS UNTIL 021800Z DEC BY M/V WESTERN PATRIOT, M/V VENTURER, M/V GECO EAGLE TOWING 14 9000 METER LONG CABLES AND M/V WG COLUMBUS TOWING 14 9000 METER LONG CABLES IN AREA BOUND BY 27-28N 091-33W, 27-28N 091-15W, 26-46N 091-15W, 26-10N 090-24W, 25-25N 090-24W, 25-25N 091-30W, 26-10N 091-45W, 26-10N 091-30W, 26-10N 091-07W, 26-42N 091-33W. SEVEN MILE BERTH REQUESTED. 2. CANCEL NAVAREA IV 895/16. 3. CANCEL THIS MSG 021900Z DEC 16.
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.
- Date-time group (DTG)
- A compact UTC timestamp — day, hour and minute followed by Z — such as 201500Z for the 20th at 15:00 UTC.
- 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.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- NAVAREA
- One of the 21 ocean areas of the World-Wide Navigational Warning Service, each with a coordinator that broadcasts long-range warnings.
- 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
82 within 180 nm since 2004 · 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.
- Seismic survey 02 jan thru 10 feb by M/V harvey intervention in vicinity: a. 26-25.00N 091-45.00W2024-01-01
- Seismic survey 02 jan thru 10 feb by M/V harvey intervention in vicinity: a. 26-25.00N 091-45.00W2024-01-01
- Temporary buoy established in 26-23.55N 090-38.57W until 16 mar by cableship it infinity2023-03-07
- Seismic survey in progress until 31 mar 17 by M/V western patriot, M/V venturer, M/V geco eagle towing 14…2016-10-15
- Seismic survey in progress until 31 mar 17 by M/V western patriot, M/V venturer, M/V geco eagle, and M/V wg…2016-10-14
- Seismic survey in progress until further notice by M/V amazon warrior, M/V western patriot, M/V venturer and…2016-10-13
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
No other collected notice is currently listed in force within this radius. This does not establish safe conditions.
Worldwide in the collected sources
24 cable & pipeline work listed in force · see all
Record snapshot 2026-10-02 13:10Z; 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.