Earthquake waves can be either transverse or longitudinal. if an earthquake wave is moving to the east, and the ground is moving back and forth along the east-west axis, this is a _____ wave.
The particle displacement in a longitudinal wave is
parallel to the direction of wave propagation. The ground particles simply oscillate
back and forth their equilibrium positions unlike transverse waves that do not
move along with the waves but rather oscillate up and down their individual
equilibrium positions.
