Seismic survey 01 thru 21 nov by vessels in area bound by 52-54S 068-10W, 53-27S 067-52W, coastline
South Atlantic Ocean · HYDROLANT 2772/01
What this record establishes
Archived notice · 2001-10-28 00:59Z
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) · NAVAREA VI 290/01 261400Z OCT 01. Issued 2001-10-27 07:50Z. 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
- South Atlantic Ocean. The parsed report position is -53.175, -68.017. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2001-10-27 07:50Z
- status
- Archived notice
- self-cancels
- 2001-10-28 00:59Z
- authority
- NAVAREA VI 290/01 261400Z OCT 01
- NAVAREA
- NAVAREA VI · named as the source of this relay
- sea
- South Atlantic Ocean
- position
- -53.175, -68.017
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
1. SEISMIC SURVEY 01 THRU 21 NOV BY VESSELS IN AREA BOUND BY 52-54S 068-10W, 53-27S 067-52W, COASTLINE. 2. CANCEL THIS MSG 280059Z OCT.
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.
- 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.
- CANCEL THIS MSG
- The warning's own expiry: a line telling the reader when the message cancels itself.
- 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.
Collected reports in this area · cable & pipeline work
21 within 180 nm since 1999 · 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 01 mar by cableship rene descartes along trackline joining 53-15.8S…2019-01-31
- Cable operations 050800Z jan to 022359Z feb by cableship rene descartes along trackline joining 54-55.9S…2019-01-05
- Cable operations 050800Z jan to 022359Z feb by cableship rene descartes along trackline joining 54-55.9S…2019-01-05
- Seismic survey in progress until further notice by M/V geo searcher towing 10700 meter long cables along…2009-02-14
- Seismic survey in progress until further notice by M/V geo searcher towing 10700 meter long cables along…2009-02-13
- Seismic survey in progress until further notice by M/V geo searcher towing 10700 meter long cables along…2009-02-09
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
- Isla magdalena light 52-55.10S 070-30.30W missingNav aids · 91.1 nm
- Magallanes radio 53-09.92S 070-54.28W mf and hf dsc receive services off airNav aids · 103.9 nm
- Magallanes radio 53-09.90S 070-54.30W hf, mf and radiotelex off airNav aids · 103.9 nm
Worldwide in the collected sources
24 cable & pipeline work listed in force · see all
Record snapshot 2026-10-02 12:03Z; 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.