M5.3 hit Fukushima offshore again / Gravitational acceleration reported significantly smaller in Daiichi plant

A major earthquake hit Fukushima offshore at 10:51 11/20/2014 (JST). Magnitude was 5.3, the maximum seismic intensity was 4.

The depth of epicenter was 40km.


Tepco reported the horizontal gal and vertical gal measured in Fukushima Daiichi were 9.7 and 6.6, which are significantly smaller than Fukushima Daini of 16.6 and 12.6 for some reason.

They concluded that no abnormality was reported in both of the plants.








Français :

Encore un M5,3 au large de Fukushima / L’accélération gravitationnelle bien plus petite à la centrale de Daiichi


Un séisme majeur a frappé au large de Fukushima le 20 novembre 2014 à 10:51 (JST). Sa magnitude a été de 5,3, L’intensité sismique maximale a été de 4.
La profondeur de l’épicentre est de 40 km.

Tepco rapporte que les accélérations (gal) horizontale et verticale relevées à Fukushima Daiichi ont été de 9,7 et 6,6, ce qui est bien inférieur aux relevés de Fukushima Daini de 16,6 et 12,6.
Ils concluent en disant qu’aucune anomalie n’est rapportée dans les deux centrales.


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 2014