are almost vertical weak spots or fractures in the bedrock
found in the Earth's crust. These weak spots can rub against
each other three different ways.
faults move mostly from side to side, but they can move from
side to side.
slip faults are leaning faults. If the dip-slip fault makes
one of the pieces of land move upward, it is called a normal
fault. If part of the land moves up then it is called a thrust