Plate tectonics describes the movement of fragments formed from broken lithosphere.
These fragments are suspended on the asthenosphere, which is molten hence offering good medium of movement. There are three different types of plate tectonics, that is, convergent, divergent, and lateral slipping. These movements cause earthquakes as the lithosphere releases mount up pressure in the Earth’s mantle. Earthquakes result mainly from lateral slipping moving and this occurs along fault lines, which are weak points on the lithosphere.