Subsea Cables & Internet Infrastructure

These two Subco-owned cable systems have experienced ongoing outages that started August 8th. Each has a shunt fault located very near the other in the Perth cable protection zone. This zone extends from shore to a depth of 2000 meters and is over 100 kilometers long. These protection zones can backfire because their width is usually just a nautical mile. So the cables are packed together like sardines and if a ship drags its anchor, then multiple outages are pretty much guaranteed. It raises the question of whether cable protection zones are really a good idea since the level of shipping pretty guarantees cable damage. In a way, cable protection zones violate the principle of resiliency via physical diversity. The most likely suspect in this case is a ship that dragged its anchor across the two cables and damaged the sheath protecting the power conductor from water. A ship has been identified that was in the area at the time the outages began. Cable repairs are slated to be complete A...

The cable ship has repaired one fault, but discovered at least one other fault in shallow water. Repair of the second fault begins soon.

Outage started 36 hours ago. No information available other than customers are reporting no data passing their links. If you need Australia connected to Singapore, it is possible to create a protect path via Guam. But it will not be cheap.