The weekly weird
4,000-mile-long subsea cable
Work on Marea, a high-capacity subsea cable spanning the 6,437 kilometres (between Bilbao, Spain, and Virginia Beach, Virginia, has been completed. Microsoft and Facebook collaborated on the development, design and implementation of the cable, while a third partner, global communication infrastructure specialist Telxius, was responsible for its construction and will take care of its maintenance.
The cable is the first link of its kind between Virginia and Spain. In total, it weighs more than 5,125 tonnes and has a capacity of 160 TB of data per second — the highest of any subsea cable to cross the Atlantic Ocean.
While coastal sections of Marea were buried under sand for protective purposes, the majority of the cable rests on the ocean floor at an average depth of nearly 3,352 metres. Planners had to route the cable so that it avoided such obstacles as earthquake zones, coral reefs and even active volcanoes. Much of our online connectivity relies on infrastructure like Marea, and when Hurricane Sandy hit, it caused widespread interruptions to internet and phone service due to the number of cables located in the storm’s path.
The companies are hopeful that Marea will help prevent such a lack of connection in the future.