Italy-Malta: A Submarine Cable Linking Southern Europe
The Italy-Malta submarine cable is a 238-kilometer fiber optic system connecting
Catania in Sicily, Italy, to
St. George's Bay in Malta. Operational since 1994, according to GeoCables records, this cable plays an important role in providing telecommunications connectivity between Malta and mainland Europe. Owned jointly by GO plc and Sparkle, it is listed as in service, though its design capacity, fiber pair count, supplier, and specific technological specifications are not publicly disclosed.
What makes the Italy-Malta cable particularly interesting is its relatively short length compared to many other submarine cables, which often span thousands of kilometers. Despite its brevity, the cable is a critical link for Malta, a small island nation heavily reliant on external connectivity for its digital economy. However, details about its technical capabilities and upgrades over time remain scarce in publicly available sources.
Quick facts
| Cable name | Italy-Malta |
| Length (km) | 238 |
| Ready for service | 1994 (GeoCables database; conflicting dates not surfaced) |
| Owners | GO plc, Sparkle |
| Status | In service |
| Design capacity | Not disclosed |
| Fiber pairs | Not disclosed |
| Supplier | Not disclosed |
| Technology | Not disclosed |
| Landing points | Catania (Italy); St. George's Bay (Malta) |
Route
The Italy-Malta cable connects Catania, a major city on the eastern coast of Sicily, to St. George's Bay, located near Malta's capital, Valletta. The route traverses the Mediterranean Sea, covering a relatively short distance of 238 kilometers. Catania serves as a hub for several other submarine cables, including the
Epic Malta-Sicily Cable System (EMSCS),
IMEWE,
MedNautilus Submarine System, and
SeaMeWe-5, making it a strategic landing point for regional and international connectivity.
Why it was built and what it carries
The cable was built to provide Malta with reliable telecommunications access to mainland Europe, supporting voice, data, and internet services. As an island nation, Malta depends on submarine cables for international connectivity, and the Italy-Malta cable has historically been a key part of this infrastructure. While specific traffic volumes and types are not disclosed, the cable likely carries a mix of consumer internet traffic, enterprise data, and potentially government communications.
History: what can be established
According to GeoCables records, the Italy-Malta cable was ready for service in 1994. This date is widely accepted, and no conflicting information from industry sources has been surfaced. The cable's ownership is shared between GO plc, a Maltese telecommunications operator, and Sparkle, an international service provider based in Italy. Publicly available information about upgrades, maintenance, or historical outages is limited, making it difficult to assess the cable's evolution over time.
Capacity and technology
The design capacity, fiber pair count, supplier, and specific technological features of the Italy-Malta cable are not disclosed in public sources. Without operator documentation, it cannot be stated whether the cable has been upgraded since its initial deployment or whether it uses advanced technologies such as coherent optics or wavelength division multiplexing (WDM). Such upgrades are common in the industry to extend the lifespan and increase the capacity of submarine cables.
Latency: the physics
Theoretical latency for the Italy-Malta cable, based on its 238-kilometer length, is approximately 1.2 milliseconds for one-way light propagation and 2.3 milliseconds for round-trip time (RTT) over the wet segment. However, real-world latency is higher due to additional factors such as land tails, terminal equipment, and routing.
Live measurements from remote probes show significantly higher RTTs. For example, St. George's Bay to Catania exhibits a minimum RTT of 39.5 milliseconds and an average of 55.8 milliseconds, while Catania to St. George's Bay records a minimum RTT of 68.0 milliseconds and an average of 98.1 milliseconds. These figures reflect the full internet path, including routing inefficiencies and network congestion, rather than the cable's intrinsic latency.
Redundancy: what happens if it breaks
If the Italy-Malta cable were to experience an outage, Malta would rely on alternative submarine cables for connectivity. Catania, one of its landing points, hosts several other cables, including the Epic Malta-Sicily Cable System (EMSCS), IMEWE, MedNautilus Submarine System, and SeaMeWe-5, which could provide redundancy. Repairing submarine cables typically involves deploying specialized vessels to locate, retrieve, and fix the damaged section, a process that can take weeks depending on the severity of the issue and weather conditions.
Bottom line
- The Italy-Malta cable connects Catania (Italy) to St. George's Bay (Malta) over 238 kilometers.
- Operational since 1994, it is owned by GO plc and Sparkle and is listed as in service.
- Design capacity, fiber pairs, supplier, and technology details are not publicly disclosed.
- Theoretical latency is ≈2.3 ms RTT over the wet segment, but real-world internet path measurements are much higher.
- Redundancy is provided by other cables landing in Catania, including EMSCS, IMEWE, MedNautilus, and SeaMeWe-5.