Most earthquakes happen at or near the boundaries between Earth's tectonic plates because that's where there is usually a large concentration of faults. Some faults crack through the Earth because of the stress and strain of the moving plates. ... Movement along those faults can cause earthquakes too.
Most earthquakes occur along or near Earth's tectonic borders because there are generally a great number of faults. Some defects fracture through the earth when the moving plates stress and forces
