The feature of the Earth's surface caused by tectonic plate movement is referred to as fault lines or earthquakes. The movement of tectonic plates leads to various geological phenomena, including the formation of mountains, valleys, and seismic activity. The interaction between these plates—such as collision, separation, or sliding past each other—can result in disasters like earthquakes, which can cause significant damage and reshape landscapes. Understanding tectonic activity is crucial to geology and disaster preparedness.