2. What is the point on Earth's surface directly above the focus of an earthquake?

3. What do you call the crack in Earth's surface along which movement takes place?

4. Name the point underground where the faulting in an earthquake occurs.

5. What do you call waves of energy sent through Earth's crust when parts of the crust move suddenly?

6. Which earthquake wave is the most destructive?

7. An earthquake of 8.5 or higher would do this.

8. It measures the strength of an earthquake on a scale of 1-10.

9. This word describes the size of the earthquake:

10. There is only one type of volcano.

11. All volcanoes erupt in the same way.

12. The epicenter of an earthquake is

13. This famous transform fault is located in the western United States creates significant earthquake activity for California

14. The Richter scale measures:

15. Which travels fastest, always being the first detected by seismic stations?

16. It is an instrument that detects and measures earthquakes.

17. Earthquakes under the water can cause?

18. Can volcanic eruptions affect climate?

19. Back and forth motion.

20. Side to side motion.

21. It is where the quake begins below surface.

22. It is where the quake begins on the surface.

23. It causes severe damage.

24. What do S (secondary) waves do during an earthquake?

25. An instrument that detects and measures earthquakes.

26. Most earthquakes happen along the ______________?

27. A tracing of earthquake motion that is created by a seismograph. This can be on a huge sheet of paper, shows P-waves.

28. It is a scale of earthquake intensity ranging from I for an earthquake detected only by seismographs

29. Smaller earthquakes that occur in the same area after a larger earthquake has occurred.

30. It is a numerical scale for expressing the magnitude of an earthquake on the basis of seismograph oscillations.