| A | B |
|---|
| focus | the point of origin of an earthquake |
| epicenter | the point on the surface directly above the point of origin of an earthquake |
| fault | a crack in the earth's crust |
| p waves | shake particles in the direction of the wave |
| s waves | shake particles side to side |
| liquefacation | shaking the solid ground makes it act like a fluid |
| earthquake | any shaking of the earth |
| solid only | the only phase that s waves can travel through |
| solid, liquid, and gas | the phases that p waves can travel through |
| seismograph | the readout from a seismogram showing earthquake patterns |
