# Can S waves travel through the mantle?

## Can S waves travel through the mantle?

S-waves can travel only through solids, because only solids have rigidity. S-waves cannot travel through liquids or gases. Because the earth’s mantle becomes more rigid as its depth below the asthenosphere increases, S-waves travel faster as they go deeper in the mantle.

Can S waves travel through?

S-wave : The S-wave (secondary, shear, or side-to-side wave) is slower than the P wave and arrives next, shaking the ground up and down and back and forth perpendicular to the direction it is traveling. Shear waves travel at 3.8 kilometers (2.4 miles) per second. S-waves cannot travel through liquids.

What layer can S waves travel through?

Unlike P waves, S waves don’t move straight through the Earth. They only travel through solid material, and so are stopped at the liquid layer in the Earth’s core.

### What can S waves move thru?

solids
S-waves can only move through solids. This is because liquids and gases don’t resist changing shape. P-waves and S-waves are the two types of body waves.

Can S waves travel through Magma?

If the magma reservoirs are filled by liquids and melt, S-waves are totally reflected and leave behind a shadow, like when passing through the Earth’s outer core. We detect both these S-wave shadows and strong reflections from the surface using earthquakes at different depths and azimuths.

Which type of wave can penetrate the mantle?

The speed of P waves and S waves increases as they travel deeper into the Earth’s mantle . They travel through the Earth in curved paths, but they change direction suddenly when they pass through the boundary between substances in different states.

## Why can’t S waves go all the way through the Earth?

S-waves are shear waves, which move particles perpendicular to their direction of propagation. They can propagate through solid rocks because these rocks have enough shear strength. This is why S-waves cannot propagate through liquids.

Why can’t S waves pass through the outer core?

S waves cannot pass through the liquid outer core, but P waves can. The waves are refracted as they travel through the Earth due to a change in density of the medium. This causes the waves to travel in curved paths.

What layer do S waves not travel through?

6. Figure 19.2b: S-waves do not travel through the outer core, creating an even bigger shadow zone for S-waves. The fact that S-waves do not travel through the outer core suggests that the latter is liquid.

### Can S waves travel through gas?

Shear waves cannot travel in liquids or gases — so, for example, S waves don’t travel through the ocean or through the outer core.

Can S waves travel through inner core?

2. P-waves speed up again through the inner core and S-waves also travel through it, suggesting that the inner core is composed of solid iron and nickel. 3.

Why can both P and S waves travel through the mantle?

Although liquids and gases have zero rigidity, they have compressibility, which enables them to transmit P-waves. Because the earth’s mantle becomes more rigid and compressible as the depth below the asthenosphere increases, P-waves travel faster as they go deeper in the mantle.