What happened to the Fukushima power plant in 2011?
Following a major earthquake, a 15-metre tsunami disabled the power supply and cooling of three Fukushima Daiichi reactors, causing a nuclear accident beginning on 11 March 2011. All three cores largely melted in the first three days.
How many deaths did Fukushima cause?
Japan has observed a moment’s silence to mark the 10th anniversary of an earthquake and tsunami that killed more than 18,000 people and triggered a nuclear meltdown in Fukushima.
How was the Fukushima disaster handled?
Plant workers were put in the position of trying to cope simultaneously with core meltdowns at three reactors and exposed fuel pools at three units. Automated cooling systems were installed within 3 months from the accident. A fabric cover was built to protect the buildings from storms and heavy rainfall.
What happened to nuclear power in Japan after the 2011 tsunami?
Of significant concern following the main shock and tsunami was the status of several nuclear power stations in the Tōhoku region. TEPCO officials reported that tsunami waves generated by the main shock of the Japan earthquake on March 11, 2011, damaged the backup generators at the Fukushima Daiichi plant.
What is the tsunami height of the Daiichi power plant?
The original design basis tsunami height was 3.1 m for Daiichi based on assessment of the 1960 Chile tsunami and so the plant had been built about 10 metres above sea level with the seawater pumps 4 m above sea level. The Daini plant was built 13 metres above sea level.
What was the worst nuclear disaster in history?
Fukushima accident. On April 12 nuclear regulators elevated the severity level of the nuclear emergency from 5 to 7—the highest level on the scale created by the International Atomic Energy Agency —placing it in the same category as the Chernobyl accident, which had occurred in the Soviet Union in 1986.
What caused the TEPCO nuclear leak in Japan?
TEPCO officials reported that the leak was the result of an open valve in the short barrier wall that surrounded several of the tanks used in radioactive water storage. The leak was severe enough to prompt Japan’s Nuclear Regulation Authority to classify it as a level-3 nuclear incident.