How are earthquakes related to plate tectonics?

Earthquakes are closely linked to the movements of tectonic plates, particularly at their boundaries. When two tectonic plates interact, they can either slide past one another, pull apart, or collide. This interaction causes stress to build up in the Earth's crust until it is released in the form of seismic waves, which we perceive as earthquakes. This process is especially prevalent at plate boundaries, where the friction and movement can lead to significant seismic activity. As plates continue to move, the stress accumulation and subsequent release inherently connect earthquakes to the dynamics of plate tectonics.

The other options do not accurately reflect the relationship between earthquakes and plate tectonics. Earthquakes do not occur randomly; there is a distinct pattern associated with the movements of tectonic plates. Additionally, while some earthquakes may occur in oceanic regions, they can also happen on land and are not confined to any particular area. The statement regarding the cooling of magma does not directly relate to seismic activity, since earthquakes are primarily driven by the movement and interaction of tectonic plates rather than the thermal state of magma.