| A | B |
|---|
| core | deepest layer of earth |
| epicenter | point on Earth's surface right above the focus of an earthquake |
| plates | continent-sized slabs that make up the crust and upper mantle |
| seismograph | instrument that records earthquake waves |
| earthquake | shaking of Earth's crust |
| mantle | thickest layer of Earth, made of solid and melted rock |
| crust | layer of Earth that includes land and the ocean floor |
| fault | break in Earth's crust along which rocks move |
| focus | underground point where an earthquake first starts |
