footwall
This is known as the foot wall of the fault.
The block of rock below a fault is the "footwall" if you are referring to geology/earthquake terms.
A block of rock above a fault is called the hanging wall. In a fault, the hanging wall is the block of rock that is positioned above the fault plane, while the block below the fault is called the footwall.
Tension in Earth's crust pulls rock apart, causing hanging walls. In a normal fault, the fault is at an angle, so one block of rock lies above the fault while the other block lies below the fault. The block of rock that lies above is called the hanging wall. The rock that lies below is called the footwall.
A block of rock below the plane of a fault is known as the hanging wall. It is the rock mass that is located above the fault plane and typically moves downward relative to the footwall during fault movement.
This is known as the foot wall of the fault.
A block of rock that lies below the plane of a fault is called the "footwall." In contrast, the block of rock that lies above the fault plane is referred to as the "hanging wall." The terms are commonly used in geology to describe the relative positions of these blocks in relation to a fault.
Tension in Earth's crust pulls rock apart, causing hanging walls. In a normal fault, the fault is at an angle, so one block of rock lies above the fault while the other block lies below the fault. The block of rock that lies above is called the hanging wall. The rock that lies below is called the footwall.
The block of rock below the fault line is called the footwall. This block remains stationary while the other block, called the hanging wall, moves during fault movement.
The footwall
When a fault is not vertical, a hanging wall and footwall are formed. The hanging wall is the block of rock above the fault plane, while the footwall is the block of rock below the fault plane. These terms help geologists describe the displacement and movement along the fault.
In geology, the footwall is the block of rock that lies below a fault plane, while the hanging wall is the block of rock that lies above the fault plane. These terms are used to describe the relative positions of rocks on either side of a fault.