Submarine Cable Insights
Data-driven analysis of global internet routing, submarine cable performance, and network anomalies — based on real measurements.
When Typhoon Sinlaku Made a 200-km Cable Take a 12,000-km Detour: Anatomy of a BGP Reroute During a Cat-5 Storm
On April 14, 2026, RTT from Saipan to Guam spiked 13× as Cat-5 Sinlaku made landfall. The Mariana-Guam cable was fine — a local BGP peering fell, sending traffic on a 12,000-km detour via Los Angeles. Live anatomy with RIPE Atlas and BGP evidence.
Maroc Telecom's Private Cable: One Owner, Six Landings, and an 8,600 km Corporate Backbone
Maroc Telecom owns a 8,600 km submarine cable connecting Casablanca to four West African countries. Real RIPE Atlas trace: Casablanca to Libreville in 86 ms, 1.025x of physics floor.
Svalbard: How Norway Laid the World's Northernmost Cable Through Arctic Storms — And Why Someone Cut It
The Svalbard Undersea Cable System runs 1,375 km through the Greenland Sea at depths up to 2,700 meters. Laid in just 25 days during the only ice-free window, it was mysteriously severed in 2022. Now Norway is building its successor: the Arctic Way.
Baltic Sea Cable Sabotage 2024–2025: When Ships Became Weapons
How use ships to cut Baltic Sea submarine cables in 2024–2025? GeoCables analysis of the sabotage incidents, routing impact, and NATO's Baltic Sentry response.
Red Sea Cable Cuts 2024: How Houthi Attacks Rerouted the Internet
How did Houthi attacks on Red Sea shipping damage 4 submarine cables in 2024? GeoCables analysis of the routing impact, latency changes, and why the Red Sea cannot be avoided.
GlobeNet: The Transatlantic Cable Powering Latin America's Financial Networks
GlobeNet: the 23,500km submarine cable built for financial markets connecting Wall Street to São Paulo. How low-latency trading shaped cable route decisions between the US and Latin America.
Hawaiki Cable: New Zealand and Australia's Pacific Lifeline
Hawaiki cable: 15,000km transpacific link connecting New Zealand and Australia to the US West Coast. How the 2022 Tonga volcanic eruption tested Pacific cable resilience.
APCN-2: The Backbone of Intra-Asian Internet
APCN-2: the 19,000km ring cable connecting 8 Asian countries. GeoCables monitoring data, Taiwan earthquake vulnerability analysis, and why a 20-year-old cable still carries critical traffic.
SEA-ME-WE 5: The Internet Highway Between Asia and Europe
SEA-ME-WE 5: the 20,000km submarine cable connecting Singapore to France via the Middle East. GeoCables monitoring data, chokepoints analysis, and real RTT measurements.
2Africa: The World's Longest Submarine Cable at 45,000km
2Africa at 45,000km is the world's longest submarine cable, circumnavigating Africa and connecting 33 countries. GeoCables monitors 450 segments. Full profile with route, owners, and capacity data.