Pacific Crossing-1 (PC-1)

Pacific Crossing-1 (PC-1) is a point-to-point submarine cable linking Japan and United States. Landing at Ajigaura, Grover Beach, Harbour Pointe, Shima, it provides a direct fiber-optic path between the two countries, serving as both a primary data route and a redundancy option for neighboring cable systems. The transpacific route is one of the busiest data corridors in the world, carrying financial, cloud, and content delivery traffic between Asian and American markets. GeoCables tracks this cable using RIPE Atlas measurements from four probes in Minsk, Almaty, Tbilisi, and Jerusalem, comparing live RTT against historical baselines to catch performance shifts early.