When tectonic plates shift, why is there only an earthquake in a single place and not all along the plates’ boundaries?

Question

When tectonic plates shift, why is there only an earthquake in a single place and not all along the plates’ boundaries?

In: Physics

Answer 1

Friction holds the plates in place without friction they could glide more easily. That being said some areas the has less friction than others and they do slide more easily in that area.