Reactor1 heated


On the press conference of 3/16 PM, Tepco announced that the temperature of reactor 1 is increasing. They still don’t know the reason. For the question of TBS, Tepco answered it might be because it was sunny outside, the high air pressure made the inside of the reactor 1 heated.

Tepco announced the temperature increased like this below.

3/15 17:00 59.6℃
3/16 13:00 63.7℃
3/16 14:00 63.7℃

Tepco had nitrogen injection stopped for 30 mins on 3/12.
They were injecting nitrogen for reactor1~3 to control hydrogen explosion. Since it was stopped temporarily, the temperature has been going up.

However, the increasing temperature is not mentioned on Tepco’s regular plant data nor even on press conference material.

Reactor1 heated


Reactor1 heated2


Additionally, they removed the data of radiation level and common use pool, and parameters of reactor 5 and 6 from the daily announcement all of a sudden. No explanation is given by Tepco.

Source 1 2 3 4



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.


March 2012