Japan is a hub for trans-Pacific undersea cables that provide Internet access between many regions of the world. About 20 submarine cables land in Japan, giving Friday’s 8.9-magnitude earthquake the potential to disrupt communications around the globe. Luckily, so far, reports of cable damage have been low, according to TeleGeography. Full report here.
Internet's still quite fast over the past 2 days- I guess things are ok for now.