The waves are refracted towards the normal (ie towards the line perpendicular to the surface).
seismic waves travel in all directions. the reason we know is because of earthquakes.
Reflection, Refraction, Diffraction
Every direction radiating from the source. However when they enter air they cannot proceed further and when they enter liquids (e.g. water, the molten nickel-iron outer core) only the p-waves can proceed further. The direction of travel also changes over distance from the source due to refraction and/or reflection.
A secondary wave causes rocks to vibrate at 90 degrees. This earthquake wave can travel through solids but not through liquids, and causes rock particles to vibrate at right angles to the direction of wave travel.
Longitudinal waves are waves that have vibrations along or parallel to their direction of travel. Examples of longitudinal waves are sound waves, waves in a slink, tsunami waves, vibrations in gases, oscillations in springs, internal-water waves, ultra sounds, earthquake P-waves.
Waves.
by their boundaries
Transverse waves will move across the direction of travel.
The waves are refracted towards the normal (ie towards the line perpendicular to the surface).
Because they are changing mediums.
Longitudinal waves.
longitudinal waves travel in the direction parallel to the Surface, which are P waves, and transverse waves travel in the direction perpendicular to the surface, which causes destructive earthquakes. Which are S waves.
Longitudinal waves are waves that have the same direction of vibration along their direction of travel, which means that the vibration of the medium (particle) is in the same direction or opposite direction as the motion of the wave. Mechanical longitudinal waves have been also referred to as compressional waves or compression waves
Compressional waves
Longitudinal waves.
P Waves
Longitudinal waves are waves that have the same direction of oscillations or vibrations along or parallel to their direction of travel, which means that the oscillations of the medium (particle) is in the same direction or opposite direction as the motion of the wave.