Question 1

Earthquakes that often come after a main earthquake are called __________.

Accepted Answer

A)  foreshocks
B)  seismic waves
C)  aftershocks
D)  seismic beltsE) None of the above
F) A) and C)

Question 2

Volcanoes cool Earth's surface because their suspended aerosols reflect sunlight.

Accepted Answer

A) True 
 B)False

Question 3

-According to the figure, the deepest earthquakes can be over 600 kilometers in depth.They occur in what tectonic environment?

Accepted Answer

A)  subduction zones
B)  collision zones
C)  mid-plate areas
D)  transform boundary areasE) B) and D)
F) A) and C)

Question 4

__________ are broad, gently sloped volcanoes.

Accepted Answer

A)  Stratovolcanoes
B)  Shield volcanoes
C)  Cinder cones
D)  Lava domesE) All of the above
F) A) and D)

Question 5

A back-and-forth motion during an earthquake is made by __________.

Accepted Answer

A)  P waves
B)  S waves
C)  R waves
D)  L wavesE) B) and C)
F) A) and D)

Question 6

How much more energy is released in a magnitude 2 earthquake compared to a magnitude 1 earthquake?

Accepted Answer

A)  1 time more
B)  32 times more
C)  76 times more
D)  100 times moreE) B) and C)
F) A) and D)

Question 7

Which of the following types of lava did each of the Hawaiian islands first start out as?

Accepted Answer

A)  pâhoehoe
B)  'a'â
C)  pillow lava
D)  blocky lavaE) A) and B)
F) A) and C)

Question 8

__________ are small, cone-shaped volcanoes consisting of pyroclasts that settle at the angle of repose.

Accepted Answer

A)  Stratovolcanoes
B)  Shield volcanoes
C)  Cinder cones
D)  Lava domesE) A) and D)
F) A) and C)

Question 9

Earthquake magnitude is evaluated based on the amount of damage an earthquake causes to physical structures.

Accepted Answer

A) True 
 B)False

Question 10

If you are on a reverse fault during an earthquake, the opposite side of the fault will move __________.

Accepted Answer

A)  toward you
B)  away from you
C)  to the left of you
D)  to the right of youE) C) and D)
F) None of the above

Question 11

All things being equal, which of the following lava characteristics might create the highest lava viscosity?

Accepted Answer

A)  high silica content, high temperature
B)  high silica content, low temperature
C)  low silica content, high temperature
D)  low silica content, low temperatureE) B) and C)
F) A) and B)

Question 12

Elastic rebound theory describes how blocks in Earth's crust bend, break, and rebound back to their original shape.

Accepted Answer

A) True 
 B)False

Question 13

The 2010 Haiti earthquake was a maximum Mercalli intensity of __________.

Accepted Answer

A)  V
B)  VIII
C)  X
D)  X or greaterE) A) and D)
F) B) and C)

Question 14

-What was the estimated magnitude of the world's most deadly earthquake?

Accepted Answer

A)  7
B)  7.8
C)  8
D)  9E) A) and C)
F) All of the above

Question 15

Each earthquake is assigned only one earthquake magnitude number.

Accepted Answer

A) True 
 B)False

Question 16

__________ is a pyroclast that has 50% air content and floats on water.

Accepted Answer

A)  Ash
B)  Lapilli
C)  Pumice
D)  A bombE) A) and C)
F) A) and B)

Question 17

The death toll for the 2010 Haiti earthquake was about __________.

Accepted Answer

A)  10,000
B)  50,000
C)  70,000
D)  100,000E) A) and D)
F) C) and D)

Question 18

Most of the shaking during an earthquake comes from __________.

Accepted Answer

A)  P waves
B)  S waves
C)  R waves
D)  R and L wavesE) A) and D)
F) None of the above

Question 19

Shield volcanoes are composed of mafic lava.

Accepted Answer

A) True 
 B)False

Question 20

1 cubic kilometer C) > 10 cubic kilometers D) > 100 cubic kilometers" class="answers-bank-image d-inline" rel="preload" > 
​
-According to the figure, how ash and rock material did the Pinatubo eruption produce?

Accepted Answer

A)  
B)  > 1 cubic kilometer
C)  > 10 cubic kilometers
D)  > 100 cubic kilometersE) A) and B)
F) A) and C)

Exam 15: Geohazards: Volcanoes and Earthquakes

__________ are small, cone-shaped volcanoes consisting of pyroclasts that settle at the angle of repose.

Correct AnswerverifiedShow Answer

-What was the estimated magnitude of the world's most deadly earthquake?

Correct AnswerverifiedShow Answer

__________ is a pyroclast that has 50% air content and floats on water.

Correct AnswerverifiedShow Answer

The death toll for the 2010 Haiti earthquake was about __________.

Correct AnswerverifiedShow Answer

If you are on a reverse fault during an earthquake, the opposite side of the fault will move __________.

Correct AnswerverifiedShow Answer

__________ are broad, gently sloped volcanoes.

Correct AnswerverifiedShow Answer

Earthquakes that often come after a main earthquake are called __________.

Correct AnswerverifiedShow Answer

A back-and-forth motion during an earthquake is made by __________.

Correct AnswerverifiedShow Answer

​ -According to the figure, how ash and rock material did the Pinatubo eruption produce?

Correct AnswerverifiedShow Answer

Which of the following types of lava did each of the Hawaiian islands first start out as?

Correct AnswerverifiedShow Answer

Elastic rebound theory describes how blocks in Earth's crust bend, break, and rebound back to their original shape.

Correct AnswerverifiedShow Answer

Volcanoes cool Earth's surface because their suspended aerosols reflect sunlight.

Correct AnswerverifiedShow Answer

Earthquake magnitude is evaluated based on the amount of damage an earthquake causes to physical structures.

Correct AnswerverifiedShow Answer

How much more energy is released in a magnitude 2 earthquake compared to a magnitude 1 earthquake?

Correct AnswerverifiedShow Answer

Each earthquake is assigned only one earthquake magnitude number.

Correct AnswerverifiedShow Answer

Most of the shaking during an earthquake comes from __________.

Correct AnswerverifiedShow Answer

All things being equal, which of the following lava characteristics might create the highest lava viscosity?

Correct AnswerverifiedShow Answer

Shield volcanoes are composed of mafic lava.

Correct AnswerverifiedShow Answer

-According to the figure, the deepest earthquakes can be over 600 kilometers in depth.They occur in what tectonic environment?

Correct AnswerverifiedShow Answer

The 2010 Haiti earthquake was a maximum Mercalli intensity of __________.

Correct AnswerverifiedShow Answer

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-According to the figure, how ash and rock material did the Pinatubo eruption produce?

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