Tepco admitted uneven settlement in Fukushima plant

On 11/5/2015, Tepco reported they surveyed the uneven settlement in Fukushima plant.

It has been known that the entire plant area sank approx. by 700 mm after 311, however the detailed survey had not been implemented so far.

As a result, Reactor 1 ~ 4 turbine buildings sank by 710 ~ 730 mm after 311, which was worse than they estimated. Also, Reactor 1 turbine building sank by 20 mm larger than Reactor 3 turbine building. Tepco did not release the survey data of Reactor buildings of Reactor 1 ~ 4 for some reason.

Compared to the surrounding areas, the turbine buildings of Reactor 1 ~ 4 are currently lower by 100 ~ 120 mm at the most.







Français :

Tepco reconnaît un affaissement inégal de toute la centrale de Fukushima


Le 5 novembre 2015, Tepco déclare avoir examiné l’irrégularité des fondations de la centrale de Fukushima.

On savait que tout le domaine de la centrale s’était affaissé d’environ 70 cm après le 11-3, néanmoins il n’y en avait pas encore eu d’étude détaillée.

Au final, après le 11-3 les bâtiments des turbines des réacteurs 1 à 4 se sont affaissés de 71 à 73 cm, soit pire que ce qu’ils avaient estimé. En outre, le bâtiment de la turbine du réacteur 1 s’est enfoncé de 2 cm de plus que celui du réacteur 3. Tepco ne publie pas les données de son étude sur les irrégularités des bâtiments des réacteurs 1 à 4.

Par rapport aux environs, les bâtiments des turbines des réacteurs 1 à 4 se sont enfoncés au plus de 10 à 12 cm.


About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


November 2015