3.When P-waves strike the outer core, however, they bend downward when traveling through the outer core and bend again when they leave.
4.In the region of the outer core the speed of S-waves or shear waves is shown to be zero but really they are evanescent and so the velocity is probably complex.
5.Earth's interior. ... Seismic waves move more slowly through a liquid than a solid. Molten areas within the Earth slow down P waves and stop S waves because their shearing motion cannot be transmitted through a liquid.
