The Earth's crust is made up of separate bits, called plates, that nestle alongside each other. … See more

They are measured on a scale called the Moment Magnitude Scale (Mw). This has replaced the better known Richter scale, now considered outdated and less accurate. T… See more

On 26 December 2004, one of the largest earthquakes ever recorded struck off the coast of Indonesia, triggering a tsunami that swept away entire communities around the Indian Oce… See more