https://world-nuclear.org/information-library/safety-and-security/safety-of-plants/fukushima-daiichi-accident?_gl=1*e5ra7g*_ga*NDU1OTE3Nzc0LjE2ODEzOTM2MzE.*_ga_1CCM6YP0WF*MTY4NzI3MzExNC4zNDYuMS4xNjg3MjczMjg1LjAuMC4w
This information paper describes in detail the causes of the nuclear accident at Fukushima Daiichi in March 2011 and the actions taken since.
fukushima daiichi accidentworld nuclear association