Landing Point · JP Japan
| Cable | Status |
|---|---|
| Muroran-Hachinohe | Active |
RTT measurements to this landing point from 2026-03-25 through 2026-05-31 — live ICMP round-trip time via RIPE Atlas probes. Recomputed daily. ✓ No anomalies detected in the monitored period.
| Probe | Location | Samples | Avg |
|---|---|---|---|
| #1014589 own probe | Almaty KZ | 3 | 316.8 ms |
| #1014473 own probe | Minsk BY | 2 | 282.9 ms |
| #1014597 own probe | Tbilisi GE | 2 | 303.7 ms |
| #1014969 own probe | Jerusalem IL | 2 | 293.8 ms |
| #1015523 own probe | Moscow RU | 2 | 249.3 ms |
| #6410 own probe | Sao Paulo BR | 1 | 247.0 ms |
| #6487 own probe | Singapore SG | 1 | 79.6 ms |
| #7062 own probe | Cape Town ZA | 1 | 404.7 ms |
| #1015313 own probe | Sevastopol UA | 1 | 296.0 ms |
Muroran is a port city located in Iburi Subprefecture on the island of Hokkaido, Japan's northernmost major island. Its coastal position on Hokkaido's southern shore makes it a geographically suitable site for submarine cable infrastructure. One submarine cable lands at Muroran, connecting the city into Japan's broader domestic submarine cable network.
The single cable landing here, the Muroran-Hachinohe system, links Muroran to another Japanese city, establishing a domestic corridor rather than an international or intercontinental one. This places Muroran within the category of landing points that serve intra-national connectivity, specifically supporting links within the Japanese archipelago.
Muroran-Hachinohe is a domestic submarine cable spanning approximately 280 kilometres. The system reached its ready-for-service date in 2002 and was listed as a draft cable at that time. Both endpoints of this cable are located in Japan, with Hachinohe — a city on the Pacific coast of Aomori Prefecture in the Tohoku region of Honshu — serving as the cable's other terminus. The route therefore spans the Tsugaru Strait region, connecting Hokkaido to Honshu across a relatively short stretch of water, at 280 kilometres one of the shorter cable systems in Japan's overall submarine cable inventory.
Within Japan's 68 submarine cable landing points, Muroran hosts a single cable, placing it in the lower tier of landing points by cable count. Major Japanese landing points such as Shima (12 cables), Maruyama (9 cables), and Chikura (8 cables) host far greater numbers of systems, while Hachijo, Minamiboso, and Naha each host four cables. Muroran's single-cable status reflects its role as a focused domestic terminus rather than a multi-cable international hub.
Muroran functions as a single-cable terminus within Japan's domestic submarine cable network, providing a direct undersea link between Hokkaido and Honshu via the Muroran-Hachinohe system. This connection supports inter-island data transmission between Japan's two largest islands, a corridor that carries both geographic and communicative significance given the separation of Hokkaido from the main Honshu landmass.
Japan as a whole hosts 51 submarine cables across 68 landing points, representing one of the densest submarine cable environments in the Asia-Pacific region. Within this network, Muroran occupies a specific and narrow role as a domestic endpoint. Its position in the broader Japanese submarine cable graph reflects how even smaller, single-cable landing points contribute to the overall redundancy and reach of the country's undersea connectivity.
View actual submarine cable routing from Muroran, Japan — with backbone nodes, distance calculations, and latency estimates
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