What causes earthquakes at tectonic plate boundaries?

Earthquakes at tectonic plate boundaries are caused by the movement of plates along faults. At convergent boundaries, plates collide, creating immense pressure that is released as seismic energy. At divergent boundaries, plates move apart, causing tension and fracturing. Transform boundaries, where plates slide past each other, generate friction that builds up until it is suddenly released, resulting in an earthquake. These movements are driven by the convection currents in Earth’s mantle and are key to shaping the planet’s surface.