China News Service, March 23. According to a report by the Japan Broadcasting Association (NHK), on the 22nd local time, Tokyo Electric Power Company announced that the water level inside the containment of Unit 1 of the Fukushima Daiichi Nuclear Power Plant dropped by about 40 cm, a further drop from the 18th. about 20 cm.
Data map: Japan's Fukushima Daiichi nuclear power plant.
The water in the containment vessel is used to cool the melted nuclear fuel.
Tepco said that the damaged part of the containment may be further expanded, but the investigation found that the cooling of the melted nuclear fuel remained normal, and there was no radiation impact on the outside.
Two days after the strong earthquake occurred off the coast of Fukushima on the 16th, the water level in the containment vessel of Unit 1 dropped by about 20 cm. After re-measurement on the 22nd, the water level dropped by another 20 cm.
On the 16th local time, a magnitude 7.4 earthquake occurred in the waters near Fukushima Prefecture, Japan.
TEPCO announced on the 17th that, affected by the earthquake, the positions of 85 water storage tanks in the Fukushima Daiichi Nuclear Power Plant for storing nuclear sewage shifted, and 6 containers containing protective clothing and iron filings used in the reactor scrapping operation occurred. tip over.