Earthquakes are among the most devastating natural disasters on the planet. In the last hundred years they have claimed the lives of over one million people. Earthquakes are destructive mainly because of their unpredictable nature. It is impossible to say accurately when a quake will strike but a new theory developed by Professor Geoffrey King could help save lives by preparing cities long in advance for an earthquake

Japan's Tsunami: Caught on Camera captures the impact of the earthquake and tsunami that devastated Japan in March 2011, using amateur footage filmed by those caught up in the disaster.

The science behind the earthquake and tsunami that have devastated Japan