Our earth is a dynamic place that moves and changes with no regard to humans or anyone else. Every once in a while, those changes occur rapidly and powerfully. Cracked looks at five events that left behind some serious scars, like the 1883 explosion of Krakatoa.
Now get this: Krakatoa is only number five on the list. Link
The blast was the equivalent of 200 megatons of TNT. For perspective, the largest explosion ever made by humans was the detonation of a Russian hydrogen bomb, which was 50 megatons. That blast broke windows in buildings 560 miles away. Krakatoa was four times that; the cloud it generated wiped entire villages off the map 25 miles away and created a tsunami that traveled all the way to South Africa. That wasn't all Krakatoa's neighbors got for their birthday that year; giant pieces of rock and coral reef fell from the sky as well.
Now get this: Krakatoa is only number five on the list. Link