Why do earthquake occur along slipping boundries?

Earthquakes occur along slipping boundaries, known as fault lines, due to the buildup of stress from tectonic plate movements. As plates slide past each other, they can become locked due to friction, causing energy to accumulate over time. When the stress exceeds the frictional force, the plates suddenly slip, releasing the stored energy in the form of seismic waves, which we perceive as an earthquake. This process is a natural part of the Earth's dynamic geology and is essential for understanding tectonic activity.