Plate Tectonics
Across
- 4. rates small earthquakes based on its wave recorded
- 7. the stress force that pulls on the crust and thins rock in the middle part
- 9. force that squeezes rock until it folds or breaks
- 10. where rocks on each side of the fault slip past eachother
- 11. a point directly above the focus
- 12. rates the total energy released in an earthquake
- 15. a area beneath earths surface under stress
- 16. seismic waves that move back and forth
- 18. fault where a hanging wall moves up and a footwall moves down
- 19. a large area of flat land elevated high above sea level
Down
- 1. rates the amount of shaking from an eartquake
- 2. seismic waves that move in a cirle
- 3. a single number that geologists use to assign to an earthquake based on the earthquakes size
- 5. a fold in rock that bends upwards
- 6. fault where rock is pulled apart by tension in earths crust
- 8. seismic waves that vibrate side to side
- 10. is an instrument that records earthquakes seismic waves
- 13. is the record of earths seismic waves produced by an seismograph
- 14. stress that pushes a mass of rock in two oppisite directions
- 17. shaking of earths tectonic plates