Explosions can happen under a variety of circumstances. They occur when energy builds up and is released faster than the surrounding environment can absorb or dissipate.
Throughout history, there have been a number of devastating explosions, both natural and manmade, some of which have had a great impact on the planet and indeed humankind.
In this gallery, we look at some of the biggest explosions ever to take place on Earth. Click on to find out what they are.