
The Japan quake turned into a nuclear disaster
After the 2011 Tōhoku earthquake and tsunami, seawater slammed into Fukushima Daiichi and knocked out the backup power needed for cooling. Without electricity, heat built up inside the reactors, and three reactors melted down.Fukushima After the 2011 Tōhoku Tsunami

Then hydrogen gas built up
With cooling halted and ventilation lost, hydrogen gas accumulated in the upper refueling hall. It exploded and blasted out wall panels from the building, turning a natural disaster into a technological one.Fukushima After the 2011 Tōhoku Tsunami