Reverse!
In a reverse fault the maximum principal stress is horizontal, compression causes reverse (thrust) faults.
Compressive or compression
The Chilean earthquake was caused by subduction zone stress, where the Nazca Plate slid beneath the South American Plate. The fault associated with this event was a megathrust fault, specifically the interface between the two plates.
When a helical compression spring is subjected to axial compressive force, the type of stress induced in the spring wire is primarily compressive stress. This stress is caused by the load that the spring is supporting, leading to a reduction in the length of the spring along its axial direction.
Reverse and thrust faults are both under compressive stress.
They are all mechanical stresses. Push is a compressive stress. Pull is a tensile stress and Twist is a type of shear stress.
Strike slip faults are formed as a result of shear stresses. However strictly speaking all faults are in a shear stress state as there is usually movement in differing directions along both sides of the fault however in the other cases, compressive or tensile stresses are the cause of the initial fault formation.
Tectonic shear stress.
A strike-slip fault is the type of fault that is the result of shear stress. In strike-slip faults, the rocks on either side of the fault move horizontally past each other. This motion is caused by the shearing forces acting on the rocks.
shearing
The type of tectonic stress that forms fault-block mountains is known as extensional stress. This stress occurs when the Earth's lithosphere is being pulled apart, causing blocks of crust to move vertically. As the blocks are uplifted and tilted along fault lines, fault-block mountains are created.
The stress that occurs when two items collide is known as impact stress. This type of stress is caused by the sudden application of force when the objects come in contact with each other, leading to deformation or damage.