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 10, 2026, a magnitude 4.7 earthquake occurred 2 km west-northwest of El Cacao, Panama. The event was localized, with its effects concentrated near the epicenter. While no widespread disruptions were reported, the region's preparedness and infrastructure resilience played a key role in maintaining stability during and after the event.
The submarine cable systems in the area demonstrated robust performance throughout the event. Key systems such as the Pan-American Crossing (PAC), which connects regions across the Americas, and the Pacific Caribbean Cable System (PCCS), linking Panama to the Caribbean and beyond, maintained their typical round-trip times of approximately 155ms and 104ms, respectively. Similarly, the Alisios cable, landing at Balboa, Panama, held steady at an average of 144ms. These systems, along with others in the region, continued to carry traffic seamlessly, underscoring their resilience and the reliability of the infrastructure.
Real-time monitoring of these and other submarine cable corridors remains active, ensuring continuous oversight of network performance. This vigilance helps maintain the stability of global communications, even in the presence of natural events like earthquakes.
October 10, 2026 - GeoCables reported a quiet day with no anomalies detected across its monitored submarine cables. Over the past 24 hours, 2314 latency/route checks were conducted on 667 submarine cables, maintaining overall network health. While there were two active alerts, both were within normal operational parameters and did not indicate any significant issues.
Notable per-cable signal changes included increases in round-trip time (RTT) for the IRIS and Guam Okinawa Kyushu Incheon (GOKI) cables, as well as decreases for the Asia United Gateway East (AUG East) and Asia Link Cable (ALC). These fluctuations are within typical operational jitter and do not suggest any underlying damage or major disruptions. The SEA-H2X, EAC-C2C, APCN-2, Tata TGN-Intra Asia (TGN-IA), and Asia-America Gateway (AAG) cables also showed minor changes in RTT, but these were consistent with normal network variability.
All cable incidents, each with its own report →
Magnitude 4.6 earthquake in Santa Cruz, Philippines affected the operation of submarine cables, including APCN-2, ADC, and others.
The magnitude 6 earthquake near La Trozos, Panama, tested the resilience of the submarine cables PAC, Curie, PCCS, and others. The infrastructure operates normally.
magnitude 6.6 earthquake near Rio Grande, Panama. Analysis of submarine cables in the zone: Alisios, Curie, PCCS, CSN-1, and others.
Magnitude 4.6 earthquake off the Izu Islands caused anomalies on submarine cables, including APCN-2 and EAC-C2C.
The 7.7 magnitude earthquake off Pitáoles Arriba, Panama, did not affect the operation of submarine cables in the region. Infrastructure continues to function.
The forest fire in Indonesia caused anomalies on submarine cables, including APCN-2 and Asia Direct Cable. Analysis of data and possible consequences.
The 6.3 magnitude earthquake in Vanuatu did not affect the submarine cables Tamtam and ICN1. The infrastructure is operating normally.
Tropical cyclone SIMON-26 affected the coastal region of Mexico. The submarine cable Lazaro Cardenas-Manzanillo Santiago Submarine Cable System continues to operate without disruptions.
| Point A | - |
|---|---|
| Point B | - |
| Coordinates A | - |
| Coordinates B | - |
| Cable Multiplier | - |
| Crosses Ocean | - |
| Route Details | - |
| 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.