Download Name: Period:_____ Date

33. The sudden release of stored up energy that occurs when two plates or blocks of the earth’s crust suddenly slip
and slide past each other along a crack in the earth’s crust is called a(n) ________________________________.
P. 91, Geology Intro Game, Video: Earthquakes: Our Restless Planet, Video: Earthquakes: Our Raging Planet
34. The field of geology which is involved with the study of earthquakes is called ________________________.
Geology Intro Game, Video: Earthquakes: Our Raging Planet
35. About ____ million earthquakes occur each year throughout the world and about ____ to ____ occur
which are considered to be major earthquakes causing significant damage and destruction.
Video: Earthquakes: Our Raging Planet
36. The fracture or crack in the earth’s crust along which two plates or blocks of the earth’s crust suddenly break
and slide past each other releasing enormous amounts of stored up energy as an earthquake is called a(n)
___________________________________ P. 91, Geology Intro Game, Video: Earthquakes: Our Restless
Planet, Video: Earthquakes: Our Raging Planet
37. The three major types of faults (fault lines) along which two plates or blocks of the earth’s crust suddenly
break and slide past each other releasing enormous amounts of stored up energy to produce an earthquake are:
P.P. 104 – 105, Geology Intro Game, Video: Earthquakes: Our Restless Planet
A. ____________________________________________ fault
B. ____________________________________________ fault
C. ____________________________________________ fault
38. The plate or block of rock which sits above or over the fault is called the _____________________ wall and
the plate or block of rock which lies under or below the fault is called the ____________________ wall.
P. 104, Geology Intro Game
39. In an earthquake that occurs along a(n) __________________________________ fault, the hanging wall
moves or slips downward along a divergent plate boundary while the foot wall moves or slips upward. (Example:
Rio Grande River Valley in New Mexico) P. 104, Geology Intro Game
40. In an earthquake that occurs along a(n) ______________________________ fault, the hanging wall moves or
slips upward along a subduction zone or a convergent plate boundary while the footwall moves or slips downward.
(Example: Mountains Surrounding L.A,) P. 105, Geology Intro Game
41. A reverse fault is sometimes called a(n) ________________________________ fault.
42. In an earthquake that occurs along a(n) ______________________________ fault the rocks on either side of
the fault move or slide horizontally past each other in opposite directions along a(n) transform plate boundary.
(Example: San Andreas Fault Line) P. 105, Geology Intro Game
43. The three major classifications of earthquakes are _________________________________ earthquakes,
_______________________________ earthquakes and ________________________________ earthquakes.
Geology Intro Game, Video: Earthquakes: Our Restless Planet
44. A(n) __________________________________ earthquake is a type of earthquake which is usually weak
and occurs during a volcanic eruption when molten rock (magma) beneath a volcano moves fracturing surrounding
rock layers. (Example: Mt. St. Helens) Geology Intro Game, Video: Earthquakes: Our Restless Planet
45. A(n) _____________________________ earthquake is a type of earthquake that can be very powerful and
destructive and it usually occurs when rock layers in the earth’s lithosphere suddenly fracture and move along a
fault line releasing enormous amounts of stored up energy. (Example: San Andreas Fault)
Geology Intro
Game, Video: Earthquakes: Our Restless Planet
46. A(n) _____________________________ earthquake is a type of earthquake that can be very powerful and
destructive and it usually occurs when rock layers in the earth’s lithosphere suddenly fracture and move along a
fault line that is not near a volcano or tectonic plate boundary. (Example: New Madrid Fault)
47. About 95% of the world’s strongest earthquakes occur along ______________________________ plate
boundaries. Video: Earthquakes: Our Restless Planet
48. A(n) ______________________________ belt is a region of the earth’s crust where earthquakes commonly
occur. Geology Intro Game, Earthquakes: Our Raging Planet
49. The three major seismic belts where most of the world’s major earthquakes occur at are: Geology Intro Game,
Earthquakes: Our Raging Planet
A. ___________________________________ seismic belt
B. ___________________________________ seismic belt
C. ___________________________________ seismic belt
50. The point in the earth’s interior where an earthquake originates or starts is called the ____________________
of the earthquake. P. 112, Geology Intro Game, Video: Earthquakes: Our Restless Planet
51. The point on the earth’s surface directly above the point in the earth’s interior where an earthquake originates
or starts is called the _____________________________ of the earthquake. P. 112, Geology Intro Game,
Video: Earthquakes: Our Restless Planet
52. The energy waves produced by an earthquake are called a(n) ______________________________ wave.
P. 112-113, Geology Intro Game, Video: Earthquakes: Our Restless Planet
53. The three types of seismic waves produced by an earthquake are: P. 113, Geology Intro Game, Video:
Earthquakes: Our Restless Planet
A. _________________________________________ wave ( ______ wave)
B. __________________________________________ wave ( ______ wave)
C. __________________________________________ wave ( ______ wave)
54. A type of seismic wave produced by an earthquake which travels toward the interior of the earth at the fastest
rate of speed causing the earth’s crust to push or slide forward and then pull or slide backward is called a(n)
_________________________________ seismic wave. P. 113, Geology Intro Game, Video: Earthquakes: Our
Restless Planet
55. A type of seismic wave produced by an earthquake which travels at the second fastest rate of speed toward the
interior of the earth causing the earth’s crust to move or slide in a side to side or shearing motion is called a(n)
________________________________ seismic wave. P. 113, Geology Intro Game, Video: Earthquakes: Our
Restless Planet
56. ________________________________ seismic waves are not capable of passing through a liquid.
Geology Intro Game, Video: Earthquakes: Our Restless Planet
P. 113,
57. A type of seismic wave produced by an earthquake that travels at the slowest rate of speed along the surface of
the earth’s crust in an up and down motion similar to an ocean wave is called a(n) _________________________
seismic wave. P. 113, Geology Intro Game, Video: Earthquakes: Our Restless Planet
58. ____________________________ and ____________________________ seismic waves are classified as
being body waves since they travel into the interior of the earth toward the earth’s inner core. Geology Intro
Game, Video: Earthquakes: Our Restless Planet
59. A(n) _______________________________ seismic wave is classified as being a surface wave since it
travels along the surface of the earth. P. 113, Geology Intro Game, Video: Earthquakes: Our Restless Planet
60. ______________________________ seismic waves are considered by most seismologists to be the most
destructive seismic waves. Geology Intro Game, Video: Earthquakes: Our Restless Planet
61. A(n) _____________________________ or ___________________________ is an instrument that
records and measures an earthquake’s seismic waves and the amount of ground motion they cause. P. 114,
Geology Intro Game, Video: Earthquakes: Our Restless Planet
62. The ___________________________________ Scale measures the size of the seismic waves produced by
an earthquake and the amount of ground motion they cause. P. 114, Geology Intro Game, Video: Earthquakes:
Our Restless Planet, Video: Earthquakes: Our Raging Planet
63. The Richter Scale ranges in value from ______ to 1_____. P. 114-115, Geology Intro Game, Video:
Earthquakes: Our Restless Planet, Video: Earthquakes: Our Raging Planet
64. The smallest value on the Richter scale which a human can detect if they were standing at the epicenter of the
earthquake is a(n) _____. Geology Intro Game, Video: Earthquakes: Our Restless Planet, Video: Earthquakes:
Our Raging Planet
65. Any earthquake which has a value of ________ or greater on the Richter scale is considered to be a major
earthquake. P. 115, Geology Intro Game, Video: Earthquakes: Our Restless Planet, Video: Earthquakes: Our
Raging Planet
66. There has never been an earthquake of ______ on the Richter Scale. Geology Intro Game, Video:
Earthquakes: Our Restless Planet, Video: Earthquakes: Our Raging Planet
67. Every time you go up by 1 on the Richter Scale the amount of ground motion or movement produced by an
earthquake increases ______ times. Geology Intro Game, Video: Earthquakes: Our Restless Planet, Video:
Earthquakes: Our Raging Planet
68. An earthquake which has a value of 7 on the Richter Scale produces ________ times more ground motion
or movement than an earthquake that has a value of 6 and an earthquake which has a value of 8 Richter Scale
produces _______ times more ground motion or movement than an earthquake that has a value of 6. P. 115,
Geology Intro Game, Video: Earthquakes: Our Restless Planet,
Video: Earthquakes: Our Raging Planet
69. A measurement of the amount of energy released by an earthquake is called the earthquakes .
Geology Intro Game, Video: Earthquakes: Our Restless Planet
P. 114,
70. The _____________________________ Scale measures the amount of energy released by an earthquake.
P. 113-114, Geology Intro Game, Video: Earthquakes: Our Restless Planet
71. Every time you go up by 1 on the Moment Magnitude Scale the amount of energy released by an earthquake
increases about _______ times.
P. 115, Geology Intro Game
72. The _____________________________ Scale is used by seismologists to describe or measure the severity
of an earthquake based on the amount of damage and destruction that it causes. P. 114, Geology Intro Game,
Video: Earthquakes: Our Restless Planet
73. The Modified Mercalli Scale ranges in value from the Roman numeral ____ to the Roman numeral _____.
P. 113, Geology Intro Game, Video: Earthquakes: Our Restless Planet
74. An earthquake with a value of _____ on the Modified Mercalli Scale would produce the least amount of
damage and destruction while an earthquake of _____ would produce the greatest amount of damage and
destruction. P. 114
75. You can have two different earthquakes which both have a value of 6 on the Richter Scale but one of the
earthquakes could have a value on the Modified Mercalli Scale that is ____________________ than the other
earthquake. Geology Intro Game, Video: Earthquakes: Our Restless Planet
76. Some factors which affect the amount of damage and destruction caused by an earthquake are:
Intro Game, Video: Earthquakes: Our Restless Planet, Video: Earthquakes: Our Raging Planet
Geology
A. The ______________________________ of the buildings in the area where the earthquake occurred.
B. The type of __________________ and __________________ that the seismic waves produced by an
earthquake travel through.
C. The ________________________________ of the focal point inside the earth.
D. How _______________________________ you are to the epicenter of the earthquake.
77. An earthquake which occurs in the earth’s crust beneath the oceans is called a(n) ______________________
earthquake. Geology Intro Game, Video: Earthquakes: Our Restless Planet, Video: Earthquakes: Our Raging
Planet
78. If the crust of the earth beneath the ocean is lifted upward by a thrust (reverse fault) earthquake it may produce
a giant sea wave called a(n) ______________________ which may be as high as 30 – 40 meters (90 – 120 feet).
Geology Intro Game, Video: Earthquakes: Our Restless Planet, Video: Earthquakes: Our Raging Planet