Genesis

Six billion years ago there was a Supernova explosion called Big Bang: all the matter was concentrate in a point and it explote, which made the Solar System. A big cold star burned and became hot and the Earth appeared, it was moved around the Sun by the gravitatory force. Life could appear.

In the Earth there tectonic plates which have moved continents.
First, a mega continent appeared called Pangaea and it started to move because the movement of the plates. A rift between Africa and America made the Atlantic Ocean, India moved up and crashed with Asia and appeared Himalaya Mountains.

But plates are the reason of volcanoes: when an earth plate and a sea plate crash, one of them goes down and it disappears because of the hotness and its particles goes up and form volcanoes. Moreover when two sea plates crash under the sea it makes submarine volcanoes which are be able to make islands such as Iceland.
And when two earth plates crash they form mountains such as Himalaya or Alps.

Earthquakes have been made by tectonics plates, earthquakes appears when two plates crash, they make a movement underground with fatal results: buildings and cities are destroyed. Both California and Japan are places with some many earthquakes.

On the other hand, without the drift of the continents the climate has not changed, we had not dominated the world and some animals have not existed.