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Ch 6 Review

Ch 6 Review. Earthquakes. Question 1. The place where slippage first occurs is called an earthquake’s _______. Focus Epicenter Magnitude intensity. Question 1. The place where slippage first occurs is called an earthquake’s _______. a) Focus. Question 2.

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Ch 6 Review

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  1. Ch 6 Review Earthquakes

  2. Question 1 • The place where slippage first occurs is called an earthquake’s _______. • Focus • Epicenter • Magnitude • intensity

  3. Question 1 • The place where slippage first occurs is called an earthquake’s _______. a) Focus

  4. Question 2 • The San Andreas Fault zone has formed where the edge of the Pacific plate is slipping • Under the North American Plate • Over the North American Plate • South along the North American Plate • North along the North American Plate

  5. Question 2 • The San Andreas Fault zone has formed where the edge of the Pacific plate is slipping d) North along the North American Plate

  6. Question 3 • The Pacific Ring of Fire is an earthquake zone that forms a ring around • The Atlantic Ocean • South America • The Pacific Ocean • North America

  7. Question 3 • The Pacific Ring of Fire is an earthquake zone that forms a ring around c) The Pacific Ocean

  8. Question 4 • When friction prevents the rocks on either side of a fault from moving past each other, the fault is said to be • fractured • subducting • locked • elastic

  9. Question 4 • When friction prevents the rocks on either side of a fault from moving past each other, the fault is said to be c) locked

  10. Question 5 • Deep-focus earthquakes usually occur in areas in which one plate • Slides past another • Remains stationary against another • Moves apart from another • Subducts under another

  11. Question 5 • Deep-focus earthquakes usually occur in areas in which one plate d) Subducts under another

  12. Question 6 • Ninety percent of continental earthquakes have • The same depth • A shallow focus • The same type of eruptions • A deep focus

  13. Question 6 • Ninety percent of continental earthquakes have b) A shallow focus

  14. Question 7 • How far below the earth’s surface do intermediate-focus earthquakes occur? • 10 to 30 km • 30 to 70 km • 70 to 300 km • 300 to 650 km

  15. Question 7 • How far below the earth’s surface do intermediate-focus earthquakes occur? c) 70 to 300 km

  16. Question 8 • Which type of earthquakes usually occurs farther inland than other earthquakes? • Deep-focus • Shallow-focus • Intermediate-focus • Microquakes

  17. Question 8 • Which type of earthquakes usually occurs farther inland than other earthquakes? a) Deep-focus

  18. Question 9 • Most earthquakes occur along or near the edges of the • North American Plate • Earth’s oceans and lakes • Eurasian Plate • Earth’s lithospheric plates

  19. Question 9 • Most earthquakes occur along or near the edges of the d) Earth’s lithospheric plates

  20. Question 10 • Where did the most widely felt series of earthquakes in the United States occur? • Alaska • California • Hawaii • Missouri

  21. Question 10 • Where did the most widely felt series of earthquakes in the United States occur? d) Missouri

  22. Question 11 • Which type of seismic wave travels the fastest? • Tsunami • P wave • S wave • Surface wave

  23. Question 11 • Which type of seismic wave travels the fastest? b) P wave

  24. Question 12 • S waves can only travel through • Gases • Solids • Liquids • Gases and liquids

  25. Question 12 • S waves can only travel through b) Solids

  26. Question 13 • What is the minimum number of seismograph stations a scientist must have data from in order to locate the epicenter of an earthquake? • 1 • 2 • 3 • 4

  27. Question 13 • What is the minimum number of seismograph stations a scientist must have data from in order to locate the epicenter of an earthquake? c) 3

  28. Question 14 • A major earthquake has a magnitude of • 2.5 to 3.5 • 3.5 to 6.0 • Less than 2.5 • 7 or above

  29. Question 14 • A major earthquake has a magnitude of d) 7 or above

  30. Question 15 • How many separate sensing devices make up a seismograph? • 1 • 2 • 3 • 4

  31. Question 15 • How many separate sensing devices make up a seismograph? c) 3

  32. Question 16 • Which of the following generally causes the most damage during an earthquake? • Aftershock • Primary wave • Secondary wave • Surface wave

  33. Question 16 • Which of the following generally causes the most damage during an earthquake? d) Surface wave

  34. Question 17 • Tsunamis result from earthquakes with epicenter located • On the ocean floor • In loose soil • Along coastlines • In continental faults

  35. Question 17 • Tsunamis result from earthquakes with epicenter located a) On the ocean floor

  36. Question 18 • What is a tsunami? • A deep-focused earthquake • A shallow-focus earthquake • A type of seismic wave • A giant ocean wave

  37. Question 18 • What is a tsunami? d) A giant ocean wave

  38. Question 19 • Landslides on the seafloor are most likely to produce • Tsunamis • Fault zones • Seismic gaps • Elastic rebounds

  39. Question 19 • Landslides on the seafloor are most likely to produce a) Tsunamis

  40. Question 20 • A seismic gap is a region in which • There are no seismographs • Tsunamis never occur • A fault is locked • Only deep-focus earthquakes occur

  41. Question 20 • A seismic gap is a region in which c) A fault is locked

  42. Question 21 • During an earthquake, a person is most likely to be safe in • A car • An open field • A cellar • A building

  43. Question 21 • During an earthquake, a person is most likely to be safe in b) An open field

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