Across
- 1. This is the rocky outer layer of Earth that includes the crust
- 3. waves P waves are also called ____ ___
- 6. This is the point on Earth's surface directly above and earthquake's starting point or focus
- 7. This is a break in a body of rock along which one block moves relative to another
- 10. This can intensify ground shaking or cause the ground to settle
- 14. This is a tracing of earthquake motion
- 16. The lithosphere is made up of large ____
- 17. Scientist locate an earthquakes ____ by using data from seismograms
- 19. Surface waves produce motion ____ on Earth's surface
- 20. These are seismic waves that travel through Earth's interior
- 21. The ____ seismic waves depends on the material through Wich the waves travel
- 22. Ground motion can be used to calculate ____
- 23. This is the location along a fault at which the first motion of an earthquake takes place
Down
- 2. These are Pressure waves ____ ____
- 4. This scale uses the ground motion to measure an earthquake
- 5. This is a weight place in the roof of a building
- 8. these are also called s waves
- 9. How an earthquake is felt by people is a measure of ____
- 11. An earthquakes ____ is directly related to its strength
- 12. This wave travels faster than an s wave ____ ____
- 13. These act as shock absorbers during an earthquake
- 15. Seismic waves that travel along the surface of the Earth
- 18. waves These are vibrations that cause different types of ground motion