Boundary fault

A boundary fault is a type of fault line where two sections of Earth's crust move past each other along a boundary. This movement occurs along a fracture or crack in the Earth's surface, often forming a significant and visible feature such as a fault line. Boundary faults are common at transform plate boundaries, where tectonic plates slide horizontally past one another. These faults can cause earthquakes when stress from the movement gets released suddenly. Essentially, a boundary fault marks the boundary between two different blocks of Earth's crust that are moving relative to each other.