| A | B |
|---|
| fault | fracture in the earth where movement |
| focus | point within the earth where an earthquake occurs |
| epicenter | point directly about the point where an earthquake occurs |
| elastic rebound | tendency for a deformed rock along a fault to spring back after an earthquake |
| aftershock | earthquake that occurs sometime after a major earthquake |
| richter | outdated scale used to measure an earthquake |
| tsunami | wave formed when the ocean floor shifts during an earthquake |
| continental drift | continents were all joined at once to form a super continent |
| pangaea | supercontinent |
| fossils | these are matched that were located on different land masses |
| plates | lithosphere is broken down into several huge pieces |
| plate tectonics | slow movement of these pieces driven by convection currents |
| divergent boundaries | two of the Earth’s plates move apart |
| convergent boundaries | two plates move together |
| transform fault boundaries | two plates grind past each other |
