Fukushima: Days That Shocked the World

On 11 March 2011, at 2.46pm, Japan was rocked by a devastating tsunami, killing 20,000 and triggering a nuclear meltdown. Survivors and witnesses tell their extraordinary stories..

In March 2011, a massive tsunami caused a major meltdown at Japan's Fukushima nuclear plant, triggering explosions and evacuations. Why had these natural disasters triggered a nuclear emergency? Experts explain what went wrong.