Smart Cable Routing
Dijkstra-based routing through real submarine cables and landing points from the industry cable inventory. Accurate distance multipliers for land and undersea segments.
In-depth analysis of how internet traffic moves through 723 submarine cable systems, based on real measurements from our probes worldwide.
On October 24, 2026, a magnitude 5.3 earthquake occurred 101 km SSE of Vilyuchinsk, Russia. The event affected a sparsely populated area, with no significant population centers reported within immediate proximity. The earthquake was monitored closely by regional and international agencies, providing real-time notifications and updates to ensure timely awareness and response.
Submarine cable systems in the region demonstrated robust resilience during the seismic activity. Despite the earthquake's proximity, systems such as the Asia-Russia route and trans-Pacific corridors connecting Russia to Japan and the United States maintained stable operations. Latency measurements across these routes held steady at their baseline values, with round-trip times consistently within expected ranges. For example, the trans-Pacific corridor linking Russia and Japan maintained latency values of 45 ms, a testament to the infrastructure's reliability under stress.
Monitoring of these critical communication pathways continues in real time, ensuring uninterrupted oversight of their performance. The network remains stable, supported by ongoing checks across the 720 submarine cable systems we monitor. This active watch underscores the resilience of global connectivity infrastructure in the face of natural events.
The network remained in a stable state today with no anomalies detected across the monitored submarine cables. Our system conducted 2735 latency/route checks over 669 cables, and while there were some fluctuations, they did not reach critical levels. Five active alerts were noted, primarily related to increased round-trip times (RTT) on several key cables: Gemini Bermuda (+112% RTT), Maldives Sri Lanka Cable (MSC) (+144% RTT), Apollo (+5031% RTT), JUPITER (+244% RTT), and SJJK (+108% RTT). Additionally, the JAKABARE cable saw a significant increase of 188.6ms compared to its average over the past week, while the Norte Conectado (Infovia 00) and ReuNION cables experienced minor improvements in latency.
These fluctuations are within typical operational parameters and do not indicate any significant issues. The Gemini Bermuda and Maldives Sri Lanka Cable alerts suggest potential environmental or transient network conditions that require continued monitoring, while the other alerts reflect normal jitter observed in submarine cable systems under varying real-world geo-events such as storms in the Atlantic region.
All cable incidents, each with its own report →
The 6.9 magnitude earthquake off Vanuatu did not affect the operation of the submarine cable Tamtam. The infrastructure demonstrates resilience.
Earthquake magnitude 4.5 near Honchō, Japan, caused anomalies on submarine cable SJC2. Analyzing impacts on internet traffic.
The 6.6 magnitude earthquake in Vanuatu did not disrupt the operation of the submarine cable Tamtam. The infrastructure remains resilient.
A magnitude 6 earthquake occurred off Vanuatu. The submarine cables Tamtam and ICN1 withstood the shock and continue to operate in normal mode.
Flooding in Syria caused anomalies on submarine cables, including Ebla and Ugarit. Analysis of data and possible consequences.
Flooding in Jordan led to anomalies on submarine cables in the region, including BERYTAR, IMEWE and others.
The 6-magnitude earthquake that occurred near Kokopo, Papua-New Guinea, on October 13, 2026, did not affect the operation of the Kumul and Coral Sea submarine cables.
Magnitude 6.1, earthquake near Río Grande, Panama. Cable infrastructure, including CSN-1, Curie, and PCCS, withstood the impact.
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| Data Source | - |
Dijkstra-based routing through real submarine cables and landing points from the industry cable inventory. Accurate distance multipliers for land and undersea segments.
Interactive map showing every cable your data touches - backbone nodes, landing stations, and submarine segments with real geographic coordinates.
Launch real network measurements from probes worldwide. Compare theoretical estimates with actual RTT and hop-by-hop packet journeys with ISP geolocation.
Speed-of-light physics combined with cable distance to estimate latency. See the real-world overhead - how much slower actual routing is vs fiber limits.
Enter cities, IP addresses, or domain names - everything is resolved to coordinates with hosting location identification and optimal cable route.
Traceroute hops enriched with city, country, ISP. Phases auto-detected: local → ISP → CDN → backbone → submarine cable. Visual RTT timelines.
City names, IP addresses, or domains. The system resolves coordinates, identifies countries, and determines whether the route crosses oceans.
A graph algorithm finds the optimal route through landing points and submarine cables with accurate distance multipliers for each segment type.
One click launches our own measurement network for real ping and traceroute. See actual RTT, identify every router, and find where your packet enters submarine cables.
Validate routing assumptions, estimate latency budgets, troubleshoot unexpected paths.
Understand your ping. Compare the physical speed limit vs reality for any server.
Choose optimal PoP locations based on submarine cable topology and landing proximity.
Teach how the physical internet works. Visualize the gap between light speed and real routing.
Over 500 submarine cable systems span the world's oceans, with a combined length of approximately 1.4 million kilometers - enough to circle the Earth 35 times.
Submarine cables carry over 99% of intercontinental data traffic. Despite what many people think, satellites handle only a tiny fraction of global internet traffic.
Light travels through fiber optic cable at about two-thirds the speed of light in vacuum. A signal from London to New York takes approximately 28 milliseconds one way.
Modern submarine cables are designed to last 25 years. Cables are buried in the seabed near shores and laid directly on the ocean floor in deep water, protected by layers of steel and polyethylene.
The deepest submarine cables reach the abyssal plains at nearly 8,000 meters. At these depths, cables rest on the ocean floor under enormous pressure, beyond the reach of anchors and fishing gear.
Major transoceanic cable projects like 2Africa or PEACE cost over $1 billion. Investment comes from tech giants like Google, Meta, and Microsoft, as well as telecom consortiums.
GeoCables is a research publication on the physical infrastructure of the global internet. We publish in-depth analyses of how data actually travels between countries - which submarine cables are used, what the measured latency is, and why it differs from the theoretical minimum.
Our research is grounded in real measurements from our own distributed network of measurement servers. We trace specific routes across 723 submarine cable systems and 1,900+ landing points in the global cable inventory, then publish what we find.
Light through fiber travels at ~200,000 km/s - about two-thirds the speed of light in vacuum. That sets the theoretical floor for round-trip time. In practice, real RTT is 1.5-4× higher due to routing detours, optical amplifiers, protocol processing, peering between networks, and suboptimal path selection. Our research articles document this overhead on specific routes - measuring it, explaining it, and tracing it back to the cables and networks responsible.
We run our own measurement network worldwide and watch in real time how traffic moves through submarine cables: where latency climbs, where links drop, what is happening right now. Open the live map to see network health and where it is noisy.