Lusk, Ireland

Lusk, Ireland: Submarine Cable Landing Point

Lusk is a town in County Dublin, situated approximately 20 kilometres north of Dublin city centre on the eastern coast of Ireland. As a submarine cable landing point, Lusk connects Ireland to the United Kingdom through a dedicated undersea link, forming part of the broader network of submarine cable infrastructure that serves the island. One submarine cable currently lands at Lusk, making it one of several landing points distributed across Ireland's coastline.

The single cable terminating at Lusk, the Geo-Eirgrid system, establishes a short cross-sea corridor between Ireland and the United Kingdom. With a length of 187 kilometres, this cable represents a relatively compact, point-to-point connection between the two neighbouring countries rather than a long-haul intercontinental route. The Geo-Eirgrid cable reached ready-for-service status in 2012 and remains the defining piece of submarine cable infrastructure at this landing point.

Cables Landing at Lusk

Geo-Eirgrid is a 187-kilometre submarine cable that became ready for service in 2012. The cable connects Ireland and the United Kingdom, spanning the Irish Sea to link the two countries across a relatively short marine corridor. It was listed with a draft status at the time of record. As the sole cable landing at Lusk, Geo-Eirgrid defines the entire submarine connectivity profile of this landing point.

Regional Context

Within Ireland's submarine cable landscape, which encompasses 16 cables across 14 landing points, Lusk hosts one cable and ranks alongside several single-cable landing points in the country, including Ballinesker, Ballygrangans, Castlefreke, and Clonshaugh. Dublin, by contrast, accommodates three cables, and Kilmore Quay hosts two, making those locations more active multi-cable hubs within the national network. Lusk occupies a modest but present position in Ireland's distributed coastal cable infrastructure.

Network Role

Lusk functions as a single-cable terminus, channelling connectivity specifically between Ireland and the United Kingdom via the Geo-Eirgrid system. The 187-kilometre length of this cable reflects the geographic proximity of the two countries across the Irish Sea, and the connection it provides is bilateral and direct rather than serving a broader multi-country corridor. Lusk does not operate as a transit or branching hub; its role is defined entirely by this one point-to-point link.

Within the regional submarine cable graph, Lusk's presence as a landing point illustrates how Ireland's cable infrastructure is spread across multiple coastal towns rather than concentrated at a single location. The Geo-Eirgrid cable landing here adds a distinct node to the Ireland-United Kingdom cable relationship, complementing connections made through other Irish landing points and contributing to the overall resilience of cross-Irish-Sea submarine connectivity.