1. Earthquakes Review

2. Which seismic waves are the fastest?

3. P waves

4. Which seismic waves are the first to be recorded?

5. P waves

6. Which seismic waves are the second to be recorded?

7. S waves

8. Which seismic waves can only travel through solids?

9. S waves

10. Which seismic waves are the slowest?

11. L waves

12. Which seismic waves travel on the surface?

13. L waves

14. What is the boundary between the crust and the mantle due to the change of speed of seismic waves?

15. Moho

16. What are the areas called where neither S nor P waves can be detected?

17. Shadow zones

18. What is the theory that says energy builds up on each side of a fault and the rocks move slowly and then spring back to their original shape?

19. Elastic rebound theory

20. What are small tremors that occur after the first release of energy?

21. aftershocks

22. What is the area where the slippage first occurs inside the earth?

23. focus

24. What is the point on earth’s surface directly above the focus?

25. epicenter

26. What are the three classifications of foci?

27. Shallow, intermediate, and deep

28. What are the three major earthquake zones?

29. Pacific Ring of Fire
Mid-ocean ridges
Eurasian – Mediterranean mt. belt

30. What is the name of the fault in California where the Pacific plate and North American plate slide past each other?

31. (technically it’s the N. American plate and the Juan de Fuca plate)
San Andreas Fault
(technically it’s the N. American plate and the Juan de Fuca plate)

32. What is the device used to record earthquakes?

33. Seismograph

34. How many stations are needed to locate an earthquake?

35. three

36. Which scale measures the magnitude or the amount of energy released from an earthquake?

37. Richter Scale

38. What are the numbers for the Richter scale?

39. Arabic Numerals
They begin a 1-2 and it is an open-ended scale, based on the seismograph’s reading.

40. Which scale measures the intensity or amount of damage from an earthquake?

41. Mercalli

42. What are the numbers for the Mercalli Scale?

43. Roman numerals

44. What can be generated from an earthquake with an epicenter on the ocean floor?

45. Tsunami