Enformable, Feb. 14, 2014: This week TEPCO released new photos [...] The investigation conducted by the utility [...] found that the shield plug which covers the primary containment vessel was deformed. [...] The shield plug is around 600 mm thick, and the edges have been found to be displaced by 300 mm.
SimplyInfo, Feb. 14, 2014: [Tepco] floated two possible causes. One being the explosion itself, the other being the overhead crane falling on the covers as part of the blast. The crane portion that holds the hook is what is assumed to have done the damage. The center panel of the concrete cover is broken and sunken. [...]
Published: February 15th, 2014 at 11:11 am ET