Across
- 4. instrument used to measure and record details of earthquake, such as force and duration
- 6. force that stretch or pull rock layers from opposite direction
- 7. is a number that characterizes the relative size of an earthquake
- 9. refers to all movements in the lithosphere
- 10. elastic waves that propagate through the Earth's interior
Down
- 1. boundary that moves towards each other
- 2. boundary that moves away from each other
- 3. point directly above the focus
- 5. the fastest surface wave
- 8. a sudden and violent shaking of the ground