Earth's Interior

It makes up about 80% of the Earth’s total volume and about 68% of its total mass.

The thinnest and the outermost layer of the Earth that extends from the surface to about 32

kilometers below.

It is 2250 kilometers thick and is made up of iron and nickel.

Is mainly made up of silicate rocks, and contrary to common belief, is solid, since both S-waves and P-waves pass through it.

It consists of oceanic and continental.

Can travel through solids, liquids, and gas.

Most damaging type of wave.

The boundary between the crust and mantle.

It is faster than Rayleigh wave and it moves the ground in a side-to-side horizontal motion, like that of a snake’s causing the ground to twist.

It is a point in the Earth’s surface directly above the focus.