In this interactive website, you can investigate the classic Earth science analogy; "Seismic waves radiate outward from an earthquake's epicenter like ripples on water". The investigation begins by watching a short thought-provoking animation that links the spreading of seismic wave to the more familiar scenario of ripples on water radiating outwards in all directions after a droplet falls onto a pool. Users have the opportunity to watch additional clips to consider how this analogy might be both like and unlike reality and to understanding how seismologists can use seismic waves to understand Earth's interior.
- Seismic waves propagate outwards as wave fronts from the source in 3-dimensions (X, Y, & Z axes) and have a velocity
- The amplitude of seismic waves is related to the amount of energy released from the source and decreases with distance from the source.
- Seismic waves are both like and unlike ripples on water.