Seismic survey in progress until 10 feb 16 by M/V ramform atlas towing 14 9000 meter long cables in area…
South Atlantic Ocean · HYDROLANT 2526/15
What this record establishes
Archived notice · 2016-01-15 00:26Z
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 V N 940/15 090027Z OCT 15 - NAVAREA V N 942/15 092019Z OCT 15.. Issued 2015-10-10 08:20Z. 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 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
- Seismic survey in progress until 10 feb 16 by M/V ramform atlas towing 14 1400 meter long cables in area…cancelled by this notice
- Ararangua light 28-56.3S 049-21.6W unlitcancelled by this notice
- Seismic survey in progress until 26 feb by M/V ramform atlas towing 14 9000 meter long cables in area bound…later cancellation notice
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2015-10-10 08:20Z
- status
- Archived notice
- authority
- NAVAREA V N 940/15 090027Z OCT 15 - NAVAREA V N 942/15 092019Z OCT 15.
- NAVAREA
- NAVAREA V · named as the source of this relay
- issued by
- NAVAREA V N
- sea
- South Atlantic Ocean
- position
- -2.583, -38.802
- vessel
- M/V RAMFORM ATLAS · 76 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
BRAZIL-NORTH COAST. DNC 01. 1. SEISMIC SURVEY IN PROGRESS UNTIL 10 FEB 16 BY M/V RAMFORM ATLAS TOWING 14 9000 METER LONG CABLES IN AREA BOUND BY 01-55.59S 039-08.73W, 01-58.47S 038-53.98W, 02-41.71S 038-10.81W, 03-19.35S 038-09.70W, 03-10.55S 038-35.73W, 03-02.77S 038-47.61W, 02-53.59S 039-00.15W, 02-41.68S 039-13.11W, 02-27.08S 039-24.96W, 02-21.78S 039-30.96W, 02-03.73S 039-27.64W. 2. CANCEL HYDROLANT 2298/15, 2479/15. 3. CANCEL THIS MSG 11 FEB 16.
Reading this warning
- DNC (Digital Nautical Chart)
- A reference to one of the regions of NGA's Digital Nautical Chart, used to tell the reader which charts a warning affects.
- 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.
- Cancellation reference
- A line that cancels an earlier warning by its number, such as CANCEL HYDROLANT 1085/12.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
- 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
345 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 130259Z feb 21 by cableship ile de brehat and cableship peter faber along…2020-12-30
- Cable operations 300300Z nov to 130259Z feb 21 by cableship ile de brehat along trackline joining 03-44.36S…2020-11-29
- Seismic survey in progress until 26 feb by M/V ramform atlas towing 14 9000 meter long cables in area bound…2016-01-15
- Seismic survey in progress until 10 feb 16 by M/V ramform atlas towing 14 1400 meter long cables in area…2015-09-16
- Seismic survey in progress until 10 feb 16 by M/V ramform atlas towing 14 9000 meter long cables in area…2015-09-10
- Pipeline operations in progress until 15 may by M/V oceanica sub II and M/V ankh along trackline joining…2015-04-15
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 04:30Z; 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.