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

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Presentation on theme: "Ch 6 Review Earthquakes. Question 1  The place where slippage first occurs is called an earthquake’s _______. a) Focus b) Epicenter c) Magnitude d) intensity."— Presentation transcript:

1 Ch 6 Review Earthquakes

2 Question 1  The place where slippage first occurs is called an earthquake’s _______. a) Focus b) Epicenter c) Magnitude d) 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 a) Under the North American Plate b) Over the North American Plate c) South along the North American Plate d) 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 a) The Atlantic Ocean b) South America c) The Pacific Ocean d) 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 a) fractured b) subducting c) locked d) 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 a) Slides past another b) Remains stationary against another c) Moves apart from another d) 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 a) The same depth b) A shallow focus c) The same type of eruptions d) 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? a) 10 to 30 km b) 30 to 70 km c) 70 to 300 km d) 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? a) Deep-focus b) Shallow-focus c) Intermediate-focus d) 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 a) North American Plate b) Earth’s oceans and lakes c) Eurasian Plate d) 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? a) Alaska b) California c) Hawaii d) 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? a) Tsunami b) P wave c) S wave d) 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 a) Gases b) Solids c) Liquids d) 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? a) 1 b) 2 c) 3 d) 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 a) 2.5 to 3.5 b) 3.5 to 6.0 c) Less than 2.5 d) 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? a) 1 b) 2 c) 3 d) 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? a) Aftershock b) Primary wave c) Secondary wave d) 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 a) On the ocean floor b) In loose soil c) Along coastlines d) 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) A deep-focused earthquake b) A shallow-focus earthquake c) A type of seismic wave d) 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 a) Tsunamis b) Fault zones c) Seismic gaps d) 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 a) There are no seismographs b) Tsunamis never occur c) A fault is locked d) 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) A car b) An open field c) A cellar d) 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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