Cable & pipeline work in the North Atlantic Ocean
Cable laying, pipeline and seismic operations.
- in force
- 13
- last 12 months
- 13
- vs previous 12 (2)
- +550%
- since 1998
- 1,584
Coverage note: the NGA archive ends 2024-05 and live collection began 2026-08-17. Warnings issued in between are here only if they were still in force when collection started, so 2024–2026 are under-counted.
In force now · 13
- HYDROLANT 1575/26in force2026-08-14Underwater operations by cableship Ile d'Yeu continue daily until 13 September along a trackline in the South Atlantic off Brazil; wide berth requested.South Atlantic · Brazil
- NAVAREA IV 789/26in force2026-08-14Underwater operations by cable ship ILE D'YEU along trackline in South Atlantic off Brazil, daily until 13 September, wide berth requested.South Atlantic · Brazil
- HYDROLANT 1568/26in force2026-08-13Cable operations by ship ILE D OUESSANT occur from 15 to 20 August in an area near Canary Islands; wide berth requested.North Atlantic · Canary Islands
- NAVAREA IV 778/26in force2026-08-11Cable ship Cable Vigilance is performing cable operations in the North Atlantic from August 15 to 28, 2026, requesting one mile berth.North Atlantic
- NAVAREA IV 729/26in force2026-07-26Cable operations by cableship Pierre de Fermat are in progress until 25 August between Aruba and Florida; wide berth requested.Caribbean Sea · North Atlantic
- NAVAREA IV 677/26in force2026-07-10Cable operations by cable ship Reliance are in progress until 22 August along a trackline from 21-58.68N 044-28.46W to 30-50.64N 061-00.22W, requesting a two-mile berth.
- NAVAREA IV 666/26in force2026-07-08In the North Atlantic near Trinidad and Tobago, pipeline operations by vessel Seven Pegasus continue until 29 August 22:00 UTC; 500-meter berth requested.North Atlantic
- NAVAREA IV 663/26in force2026-07-07Cable ship Ile de Molene is doing cable operations off Trinidad and Tobago from July 10 to August 15; one-mile berth requested.Atlantic Ocean · Caribbean Sea
- NAVAREA IV 659/26in force2026-07-05Cable operations by ship Ile d'Yeu from 8 July to 31 August in North Atlantic off French Guiana, one mile berth requested.North Atlantic · French Guiana
- NAVAREA IV 658/26in force2026-07-05Pipeline operations by vessel Saipem Constellation continue until 31 December off Guyana; wide berth requested.North Atlantic · Guyana
- NAVAREA IV 649/26in force2026-07-02Pipeline operations are in progress until 10:00 UTC on October 20 by vessel DLV 2000 near Trinidad and Tobago, with 500-meter berth requested.Caribbean Sea
- NAVAREA IV 640/26in force2026-06-30Cable operations are in progress until August 31 in an area off French Guiana; one mile berth requested.North Atlantic · French Guiana
- NAVAREA IV 7/26in force2026-01-02Pipeline operations are in progress in the North Atlantic through December 31, 2026, by multiple vessels; wide berth is requested.North Atlantic
Longest in force
- NAVAREA IV 7/26in force2026-01-02 · 231 dPipeline operations are in progress in the North Atlantic through December 31, 2026, by multiple vessels; wide berth is requested.North Atlantic
- NAVAREA IV 640/26in force2026-06-30 · 53 dCable operations are in progress until August 31 in an area off French Guiana; one mile berth requested.North Atlantic · French Guiana
- NAVAREA IV 649/26in force2026-07-02 · 51 dPipeline operations are in progress until 10:00 UTC on October 20 by vessel DLV 2000 near Trinidad and Tobago, with 500-meter berth requested.Caribbean Sea
- NAVAREA IV 658/26in force2026-07-05 · 48 dPipeline operations by vessel Saipem Constellation continue until 31 December off Guyana; wide berth requested.North Atlantic · Guyana
- NAVAREA IV 659/26in force2026-07-05 · 48 dCable operations by ship Ile d'Yeu from 8 July to 31 August in North Atlantic off French Guiana, one mile berth requested.North Atlantic · French Guiana
By month (all years)
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Other hazards in the North Atlantic Ocean
Archive · 1,571 cancelled
- NAVAREA IV 67/132013-02-07 → 2013-02-14Cable operations in progress until 141700Z feb by cableship wave sentinel along trackline between 42-18.48N…Western North Atlantic
- HYDROLANT 284/132013-02-01 → 2013-03-01Seismic survey in progress until 28 feb by M/V harrier explorer towing 5.4 mile long cable in area bound by…Brazil-north Coast
- NAVAREA IV 52/132013-01-31 → 2013-02-13Cable repair operations in progress thru 12 feb by cableship ile de aix along trackline between 39-53.37N…Western North Atlantic
- NAVAREA IV 48/132013-01-28 → 2013-02-02Cable repair operations in progress until 021800Z feb by cableship wave sentinel in area bound by 37-25.2N…Western North Atlantic
- NAVAREA IV 34/132013-01-20 → 2013-01-26Cable repair operations in progress until 261400Z jan by cableship wave sentinel in area bound by 37-25.2N…Western North Atlantic
- HYDROLANT 172/132013-01-19 → 2013-02-03Seismic survey in progress until 02 feb M/V polarcus asima towing 12 10000 meter long cables in area bound…Gulf of Guinea · Liberia
- HYDROLANT 96/132013-01-11 → 2013-02-01Seismic survey in progress until 31 jan by M/V harrier explorer towing 5.4 mile long cable in area bound by…Brazil-north Coast
- HYDROLANT 51/132013-01-05 → 2013-01-11Seismic survey in progress until 10 jan by M/V harrier explorer towing 5.4 mile long cable in area bound by…Brazil-north Coast
- HYDROLANT 3084/122012-12-30 → 2013-01-11Cable operations 01 jan 13 until further notice by cableship raymond croze along trackline joining 14-40.36N…Eastern North Atlantic · Senegal
- HYDROLANT 3004/122012-12-21 → 2013-01-05Seismic survey in progress until 04 jan 13 by M/V harrier explorer towing 5.4 mile long cables in area bound…Brazil-north Coast
- HYDROLANT 2919/122012-12-10 → 2012-12-22Seismic survey 11 thru 21 dec by M/V harrier explorer towing 5.4 mile long cable in area bound by 03-41N…Brazil-north Coast
- HYDROLANT 2812/122012-11-29 → 2012-12-04Seismic survey in progress until 03 dec by M/V harrier explorer towing 5.4 mile long cable in area bound by…Brazil-north Coast
- HYDROLANT 2744/122012-11-20 → 2012-11-21Seismic survey in progress until 20 nov by M/V hawk explorer towing 5.4 mile long cables vicinity of…Brazil-north Coast
- HYDROLANT 2743/122012-11-20 → 2012-11-27Seismic survey in progress until 26 nov by M/V harrier explorer towing 5.4 mile long cables in area bound by…Brazil-north Coast
- HYDROLANT 2742/122012-11-20 → 2012-11-20Seismic survey 20 thru 26 nov by M/V harrier explorer towing 5.4 mile long cable in area bound by 03-41.00N…Brazil-north Coast
- HYDROLANT 2703/122012-11-16 → 2012-11-20Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. 16 and 17 nov along trackline between…Brazil-north Coast
- HYDROLANT 2701/122012-11-15 → 2012-11-20Seismic survey in progress until 19 nov by M/V harrier explorer towing 5.4 mile long cables in area bound by…Brazil-north Coast
- HYDROLANT 2692/122012-11-13 → 2012-11-15Seismic survey in progress until 14 nov by M/V harrier explorer towing 5.4 mile long cables in area bound by…Brazil-north Coast
- HYDROLANT 2691/122012-11-13 → 2012-11-16Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. in progress along trackline between…Brazil-north Coast
- HYDROLANT 2632/122012-11-07 → 2012-11-13Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. 07 and 08 nov along trackline between…Brazil-north Coast
- HYDROLANT 2628/122012-11-07 → 2012-11-12Seismic survey in progress until 11 nov by M/V harrier explorer towing 5.4 mile long cables in area bound by…Brazil-north Coast
- NAVAREA IV 663/122012-11-04 → 2012-11-06Cable laying operations in progress until further notice by cableship ile de batz along trackline joining…Western North Atlantic · Dominican Republic-north Coast
- HYDROLANT 2596/122012-11-03 → 2013-04-28Seismic survey in progress until 27 apr 13 by M/V bgp prospector towing ten five mile long cables in area…Eastern North Atlantic · Western Sahara
- HYDROLANT 2579/122012-11-01 → 2012-11-06Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. in progress vicinity 04-44.12N 050-03.73WBrazil-north Coast
- HYDROLANT 2554/122012-10-30 → 2012-11-04Seismic survey in progress until 03 nov by M/V harrier explorer towing 5.4 mile long cables in area bound by…Brazil-north Coast
- NAVAREA IV 647/122012-10-30 → 2012-11-03Cable laying operations 310900Z oct until further notice by cableship ile de batz along trackline joining…Western North Atlantic · Dominican Republic-north Coast
- HYDROLANT 2520/122012-10-27 → 2012-11-03Seismic survey in progress until 27 apr 13 by M/V bgp prospector towing ten five mile long cables in area…Eastern North Atlantic · Western Sahara
- HYDROLANT 2483/122012-10-24 → 2012-10-28Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. 24 and 25 oct along trackline between…Brazil-north Coast
- HYDROLANT 2451/122012-10-20 → 2012-10-24Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. 21 and 22 oct along trackline between…Brazil-north Coast
- NAVAREA IV 607/122012-10-17 → 2012-10-30Cable operations 200200Z to 300200Z oct by cableship rene descartes along trackline between 42-11N 047-53W…Western North Atlantic
- HYDROLANT 2416/122012-10-16 → 2012-10-21Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. in progress along trackline between…Brazil-north Coast
- NAVAREA IV 603/122012-10-15 → 2012-10-21Cable operations in progress until further notice by cableship raymond croze vicinity 40-22N 062-57WWestern North Atlantic
- NAVAREA IV 597/122012-10-13 → 2012-10-27Cable laying operations in progress until further notice by cableship ile de batz vicinity of trackline…Western North Atlantic
- NAVAREA IV 588/122012-10-10 → 2012-10-15Cable operations in progress until further notice by cableship raymond croze vicinity 40-51.4N 057-08.8WWestern North Atlantic
- HYDROLANT 2328/122012-10-05 → 2012-10-08Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. in progress along trackline between…Brazil-north Coast
- HYDROLANT 2284/122012-10-01 → 2012-10-04Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. in progress along trackline between…Brazil-north Coast
- NAVAREA IV 558/122012-09-29 → 2012-10-10Cable repair operations by cableship raymond croze: a. in progress until 04 oct in 41-00-15.9N 054-52-23.3WWestern North Atlantic
- HYDROLANT 2232/122012-09-25 → 2012-10-01Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. in progress along trackline between…Brazil-north Coast
- HYDROLANT 2191/122012-09-21 → 2012-10-16Seismic survey 24 sep until further notice by M/V western regent towing 12 four mile long cables in area…Eastern North Atlantic · Mauritania
- HYDROLANT 2183/122012-09-21 → 2012-09-25Seismic survey by M/V hawk explorer towing 6.5 mile long cables: a. 21 sep along trackline between 06-11.68N…Brazil-north Coast
- HYDROLANT 2156/122012-09-18 → 2012-09-23Underwater operations in progress until further notice by cableship rene descartes vicinity of trackline…Eastern North Atlantic
- NAVAREA IV 536/122012-09-17 → 2012-09-24Cable operations 182100Z to 242100Z sep by M/V ile de brehat vicinity of trackline between 38-22.2N…Western North Atlantic
- HYDROLANT 2119/122012-09-12 → 2012-09-16Seismic survey by M/V fugro explorer towing 5.4 mile long cables: a. in progress vicinity 00-59.50N 046-02.78WBrazil-north Coast
- HYDROLANT 2112/122012-09-11 → 2012-09-16Seismic survey by M/V hawk explorer towing 5.4 mile long cables: a. in progress along trackline between…Brazil-north Coast
- HYDROLANT 2106/122012-09-11 → 2012-09-21Cable repair operations 131200Z to 211200Z sep by cableship ile d'aix with submersible vicinity 38-04.3N…Eastern North Atlantic · Portugal-southwest Coast
- NAVAREA IV 511/122012-09-06 → 2012-11-15Trinidad and tobagoWestern North Atlantic
- HYDROLANT 2049/122012-09-05 → 2012-09-10Seismic survey by M/V hawk explorer towing 6.5 mile long cables: a. in progress along trackline between…Brazil-north Coast
- HYDROLANT 1995/122012-08-29 → 2012-11-17Seismic survey 01 sep thru 30 nov by M/V geo pacific in area bound by 12-20.13N 016-43.03W, 12-00.00N…Eastern North Atlantic · Sierra Leone
- HYDROLANT 1994/122012-08-29 → 2012-09-03Cable operations 30 aug thru 06 sep by cableship ile de brehat vicinity 15-47.9N 018-01.6WEastern Atlantic · Senegal
- HYDROLANT 1987/122012-08-29 → 2012-09-01Seismic survey 01 sep thru 30 nov by M/V geo pacific in area bound by 12-20.13N 016-43.03W, 12-00.00N…Eastern North Atlantic · Senegal
Sea boundaries: Flanders Marine Institute (2018), IHO Sea Areas v3, marineregions.org (CC BY 4.0). Not for navigation — follow official NAVAREA / coastal broadcasts and your national MSI service.