Britannica
Sources used in this answer
- Fukushima accident
- Japan earthquake and tsunami of 2011: Top Questions
- Alternative energy - March 11, 2011 - Earthquake off coast of Japan damages six power plants at Fukushima Daiichi; nuclear crisis eventually reaches level 7, the highest level possible
- Japan earthquake and tsunami of 2011 - Northern Japan’s nuclear emergency
Which Fukushima Daiichi reactors experienced partial meltdowns after the 2011 tsunami?
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Japan earthquake and tsunami of 2011
Aerial view of damage to a portion of the northeastern coast of Honshu, Japan, following the offshore earthquake and resultant tsunami there on March 11, 2011.
Following the 2011 tsunami, the loss of power at the Fukushima Daiichi plant caused cooling systems to fail in the three operational reactors. As a result, the fuel rods in reactors 1, 2, and 3 overheated and experienced partial meltdowns.12