matin hei

the relative displacement of originally neighboring points on opposing walls of a fault

a large block or tabular section of the lithosphere that reacts to tectonic forces as a unit and moves as such.

an earthquake rupture is the extent of slip that occurs during an earthquake In the Earth's crust.

لرزه نگارها machines that record movements of the Earth

کارخانه هاى کوچک a relatively small - scale steel mill that uses scrap metal as starting material