Seismic survey in progress until further notice by M/V geo coral towing 12 9500 meter long cables in area…
South Atlantic Ocean · HYDROLANT 1448/14
What this record establishes
Archived notice · 2014-07-31 10:37Z
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 VII 210/14 100824Z JUN 14.. Issued 2014-06-10 12:35Z. 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 further notice by M/V geo coral towing 12 9500 meter long cables in area…cancelled by this notice
- Cancel HYDROLANT 1448/14 and this msglater cancellation notice
Current notices and reporting history in the South Atlantic Ocean →
- issued
- 2014-06-10 12:35Z
- status
- Archived notice
- authority
- NAVAREA VII 210/14 100824Z JUN 14.
- NAVAREA
- NAVAREA VII · named as the source of this relay
- sea
- South Atlantic Ocean
- position
- -7.180, 10.882
- vessel
- M/V GEO CORAL · 58 messages
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN SOUTH ATLANTIC. ANGOLA. 1. SEISMIC SURVEY IN PROGRESS UNTIL FURTHER NOTICE BY M/V GEO CORAL TOWING 12 9500 METER LONG CABLES IN AREA BOUND BY 07-49S 010-35E, 07-14S 011-36E, 06-33S 011-11E, 07-07S 010-10E. SEVEN MILE BERTH REQUESTED. 2. CANCEL HYDROLANT 3100/13.
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.
- Until further notice
- The operation or danger has no scheduled end; the warning stays in force until a later message cancels it.
- 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.
- HYDROLANT
- The U.S. long-range warning series for Atlantic waters outside NAVAREA IV, including the eastern Atlantic, the Mediterranean and adjoining seas.
Collected reports in this area · cable & pipeline work
92 within 180 nm since 1999 · 4 in the last 12 months · 2 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 190001Z sep until further notice by cableship leon thevenin in area bound by 05-27.80S…2026-09-15
- NAVAREA VII 246 of 2026 (24 aug 26) 1. south atlantic ocean - ne sector - offshore orange river mouth 2.…2026-08-24
- Survey operations in progress until 22 aug by cableship nautilus in: a. 06-16.56S 011-14.56E2026-08-04
- Special operations2026-07-02
- Cable operations 121200Z sep until further notice by cableship leon thevenin in area bound by 05-45.43S…2024-09-10
- Cable operations 171200Z jan until further notice by cableship leon thevenin in area bound by 05-37.00S…2024-01-16
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
- NAVAREA VII 246 of 2026 (24 aug 26) 1. south atlantic ocean - ne sector - offshore orange river mouth 2.…Cable ops · 50.6 nm
- Operation on cableOther · 92.5 nm
Worldwide in the collected sources
24 cable & pipeline work listed in force · see all
Record snapshot 2026-10-02 02:55Z; 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.