Submarine Cable Insights
Data-driven analysis of global internet routing, submarine cable performance, and network anomalies - based on real measurements.
7.4 Magnitude Earthquake Strikes Off Mexico; GeoCables Confirms Network Stability
Magnitude 7.4 earthquake off Puerto Madero, Mexico. Submarine cables, including SPCS and AMX-1, withstood the shocks.
Magnitude 6.7 Earthquake in Loyalty Islands: Submarine Cables Stable and Fully Operational
Magnitude 6.7 earthquake off Loyalty Islands on July 13, 2026. How submarine cables Gondwana-2 and Tamtam held up during the event.
Earthquake M5.1 off Tamblak: Impact on Cables
Analysis of the consequences of the M5.1 earthquake near Tambolaka (Indonesia) for submarine cables, including the IGG System and others.
Magnitude 5.2 Earthquake Near Sarangani Impacts IGG Cable, Other Systems Stable
Analysis of the consequences of the M5.2 earthquake in the Philippines for submarine cables, including IGG System and Apricot.
Episode of Delay and Recovery on the Hawk Cable
Discover the July 2026 latency spike on the Hawk cable linking Marseille, Alexandria, and Cyprus, and how baseline metrics were restored swiftly.
Tannat Cable: 21 Days of Drift, Argentina to Brazil, 25ms to 506ms
From April 17 to May 7, 2026, our monitors watched Tannat's Argentina-to-Brazil latency drift from 25ms to 506ms — twenty times the physics floor. Twelve alerts, neighbouring cables clean. What an opaque submarine-cable rerouting looks like in three weeks of data.
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.