| A | B |
|---|
| earthquake | released energy from breaking rock |
| normal fault | divergent boundary |
| reverse fault | convergent boundary |
| strike slip fault | transvergent boundary |
| seismograph | instrument used to record waves |
| richter | scale of intensity of earthquake |
| mercalli | scale of damage of earthquake |
| shadow zone | area where no waves are detected |
| epicenter | point on crust above focus |
| primary | fastest waves |
| surface | slowest and most destructive waves |
| San Andreas Fault | strike slip Cal. fault |
| Moho | boundary between mantle and crust |
| liquefaction | when solids act like liquids |
| tsunamis | large ocean waves caused by earthquakes |
| focus | point at which energy is released in earthquake |
