E2
Lesson Summary
Vocabulary Link
- seismic waves
- seismograph
- seismogram
- body waves
- p wave
- s wave
- surface wave
- Seismic waves are vibrations that transmit the energy of an earthquake through the Earth.
- Particles in a P (primary) wave move parallel to the overall direction of wave motion or energy transfer.
- Particles in an S (secondary) wave move perpendicular to the overall direction of wave motion or energy transfer.
- Surface waves travel at or near the Earth's surface.
- Seismic waves travel at different speeds through the Earth.