Seismic survey in progress until 30 apr 17 by M/V western neptune, M/V wg magellan, M/V geco diamond and M/V…
Gulf of Mexico · NAVAREA IV 951/16
What this record establishes
Archived notice · 2017-05-01 00:01Z
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) · WESTERN NEPTUNE 050745Z NOV 16.. Issued 2016-11-05 08:10Z. 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.
Current notices and reporting history in the Gulf of Mexico →
- issued
- 2016-11-05 08:10Z
- status
- Archived notice
- authority
- WESTERN NEPTUNE 050745Z NOV 16.
- NAVAREA
- NAVAREA IV
- issued by
- WESTERN NEPTUNE
- sea
- Gulf of Mexico
- position
- 19.172, -93.258
- vessels
- M/V GECO DIAMOND · 177 messagesM/V GECO EMERALD · 66 messagesM/V WESTERN NEPTUNE · 226 messagesM/V WG MAGELLAN · 31 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
BAY OF CAMPECHE. MEXICO. 1. SEISMIC SURVEY IN PROGRESS UNTIL 30 APR 17 BY M/V WESTERN NEPTUNE, M/V WG MAGELLAN, M/V GECO DIAMOND AND M/V GECO EMERALD TOWING 10000 METER LONG CABLES IN AREA BOUND BY 20-03.5N 092-26.3W, 19-35.0N 092-06.8W, 18-59.7N 092-33.8W, 18-41.9N 093-02.9W, 19-01.0N 093-15.9W, 18-17.5N 094-26.0W, 18-40.1N 094-41.7W. EIGHT MILE BERTH REQUESTED. 2. CANCEL THIS MESSAGE 01 MAY 17.
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
62 within 180 nm since 2009 · 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 in progress until 13 dec by M/V polarcus adira, M/V polarcus naila, M/V oceanic champion,…2019-08-12
- Cable operations in progress until 132359Z aug by M/V polarcus adira and M/V polarcus naila 9000 meter long…2019-08-03
- Seismic survey in progress until further notice by M/V wg tasman, M/V geco topaz, M/V wg cook and M/V geco…2016-12-15
- Seismic survey in progress until further notice by M/V wg tasman, M/V geco topaz, M/V wg cook, and M/V geco…2016-10-13
- Seismic survey in progress until 10 oct by M/V western neptune, M/V wg columbus, M/V geco diamond, M/V geco…2016-09-12
- Seismic survey in progress until 30 oct by M/V western neptune, M/V wg columbus, M/V geco diamond, M/V geco…2016-08-16
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
- Tonala light 18-12-45N 094-08-00W unlitNav aids · 76.1 nm
- Roca partida light 18-42-17N 095-11-18W unlitNav aids · 113.2 nm
Worldwide in the collected sources
23 cable & pipeline work listed in force · see all
Record snapshot 2026-10-02 16:56Z; 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.