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Part 1
An earthquake of magnitude 9.0 occurs at the Fukushima Daiichi nuclear power plant and units 1, 2 and 3 to shut down automatically. -
Part 2
The Back-up battery of the Power Plant supplies are destroyed. The ability to cool the reactors of units 1, 2 and 3 is not available at the time -
Part 3
A hydrogen explosion occurs at unit 3 of the Power Plant -
Cooling Failure
Cooling Systems begin to fail and have to use water to spray on the units to keep them going. -
Cooling Event
Water is sprayed into the spent fuel pools at units 1 and 3 using a concrete pumping truck to keep them going -
Another Earthquake
A magnitude 7.1 earthquake (aftershock) occurs by the Fukushima Daiichi nuclear power plant. They say that this is the largest aftershock earthquack since the 9.0 earthquake. -
Cooling Failure Part 2
Crews continue to cool the spent fuel pools at units 1, 2 and 4 by injecting water directly into the pools with electrical pumps and concrete pumping trucks. -
Final Event
18 June -17 August 2011 the power plant starts to shut down and the Plant is destroyed