Japan recently suffered a tremendously powerful earthquake. Scientists have claimed it was as much as 1,000 times more powerful than the Christchurch earthquake earlier this year. The main devastation in Japan has been caused by a tsunami caused as a result of the quake.
Here are two short guides to help explain the processes involved in these natural disasters.
Click the image below to view an animated guide to Tsunamis
Click the image below to view an animated guide to earthquakes