Plate Movement
A Tectonic plate (also known as lithospheric plate) is a massive shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. There are 3 types of plate movement.
Divergent
Divergent plate movement occurs when two plates move away from each other. Magma from the mantle underneath the crust rises up the surface, cooling and solidifying at the plate boundary.
Convergent
A convergent boundary is when the tectonic plates smash into each other, some crust is destroyed due to the crash, therefore this convergent boundary is also called a destructive boundary. The oceanic/continental boundary is where the thinner oceanic crust meets the thicker continental crust and goes under it. Which can cause earthquakes from large chunks of rock getting caught between the two. The oceanic/oceanic boundary is where two oceanic crusts meet and one over laps and the other goes under. This can create trenches and underwater volcanoes. The continental/continental boundary is where two continental crusts collide. Instead of one sinking under the other the crusts buckle and move upwards or sideways. Subduction zones are where crusts meet and one submerges underneath, so the oceanic continental boundary and the oceanic oceanic boundaries are examples of a subduction zone.
Transform
Transform is when 2 Tectonic plates slide past each other. If the tectonic plates latch on to each other they cause an earthquake.