‘Robotic probes have dived into the watery ruins of the Fukushima nuclear power plant and revealed that vital supporting structures appear to be damaged. While the discovery is not an immediate concern, it’s feared it could become a major issue if another earthquake rocks the area….
The concern is that three of the reactors contain an estimated total of 880 tons of highly radioactive melted fuel debris. According to The Asahi Shimbun, TEPCO managed to obtain the first visual confirmation of the melted nuclear fuel in the Unit 1 reactor for the first time just last week.
The clean-up operation is still challenged with removing the fuel debris. If these support structures break, then it threatens to cause further headaches for TEPCO…’
— via IFLScience