Pumice stones from submarine volcano eruption likely to hit the coolant systems of Fukushima plant

Photo : Reactor 5 and 6. Photo was taken on the 19th of June, 2015. [URL]


An overwhelming amount of pumice stones is likely to hit the Fukushima plant. 


A submarine volcano of Ogasawara islands erupted from the 13th to the 15th of August, 2021. The eruption, which occurred approximately 1,300km south of Tokyo, is estimated to be the largest volcanic activity in Japan since the end of the Second World war. It simulatedly produced 100 ~ 500 million cubic meter of pumice stones and it’s already covering the beaches of other islands, which are around 1,300km away.


Fukushima nuclear plant is about 1,460km from the erupted volcano and Tepco is forced to build the shielding walls in the port of the plant as the spent fuel pools of Reactor 5 and 6 are depending on seawater. Pumice stones may damage the seawater intake equipment of the coolant system. The original shielding facility has been left crippled since the tsunami. Tepco announced the plan to install a silt fence and metal fence in the plant port. 

It is not estimated when and how much pumice stones may reach the Fukushima plant. 



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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 2021