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Deep-Sea Cable Health Monitoring Network AbyssNet Goes Live: AI Detects 98% of Global Submarine Cable Damage in Real Time

Google and SubCom have jointly launched AbyssNet, a deep-sea cable health monitoring network that uses distributed acoustic sensing and AI analysis to monitor global submarine cable conditions in real time, predicting potential damage points 48 hours before failures occur

Deep-Sea Cable Health Monitoring Network AbyssNet Goes Live: AI Detects 98% of Global Submarine Cable Damage in Real Time

Google and submarine cable supplier SubCom have jointly launched AbyssNet, a deep-sea cable health monitoring network. The system integrates distributed acoustic sensing (DAS) optical fibers into submarine cables, using AI to analyze vibration patterns along the cable route to detect threats from anchors, earthquakes, and trawling nets in real time.

AbyssNet currently covers 98% of the world's transoceanic submarine cables, with a total monitored length exceeding 1.3 million kilometers. The system collects 1,000 vibration data points per meter of cable per second, performing preliminary analysis through edge AI chips in undersea repeaters and transmitting only anomalous data back to shore.

Bimesh Patel, Vice President of Global Network Infrastructure at Google, said: "95% of intercontinental data traffic travels through submarine cables, but repairing damaged cables takes an average of 17 days. AbyssNet's goal is to shift this to predictive maintenance — dispatching repair ships before cables break."

During its first month of live testing, AbyssNet successfully predicted 3 potential cable damage events, all caused by fishing vessel anchor chain friction. Maintenance teams completed protective work before the cables were actually damaged.