Exam 4: Geologic Hazards
Exam 1: Hazards and Disasters22 Questions
Exam 2: Preparedness, Hazard Mitigation, and Climate Change Adaptation22 Questions
Exam 3: Meteorological and Hydrological Hazards22 Questions
Exam 4: Geologic Hazards22 Questions
Exam 5: Human-Made Hazards21 Questions
Exam 6: The Role of the Federal Government in Disaster Management22 Questions
Exam 7: Mitigating Hazards at the State Level22 Questions
Exam 8: Local Government Powers22 Questions
Exam 9: Community Resilience and the Private Sector22 Questions
Exam 10: Risk Assessment22 Questions
Exam 11: Preparedness Activities22 Questions
Exam 12: Hazard Mitigation Planning22 Questions
Exam 13: Disaster Resilience22 Questions
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Describe why earthquakes tend to have more severe impacts on poorer countries as opposed to wealthier countries.
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(Essay)
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Correct Answer:
Answers will vary. However, students should address the fact that wealthier countries often have stricter building codes that lead to more sturdy construction that is resistant to seismic damage. Another factor is that wealtheir often have robust emergency response programs and resources for disaster recovery to help in the aftermath of a disaster. Students may provide the example used in the text of the earthquake in Chile in 2010, that was stronger than the 2010 Haiti earthquake, but which ultimately caused far less damage and suffering than the Haiti earthquake, which had a death toll of 230,000 and has worsened widespread poverty in the country.
The _______ _______is an open-ended logarithmic scale that describes the energy release of an earthquake through a measure of shock wave amplitude.
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(Short Answer)
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Correct Answer:
Richter Scale
Shield volcanoes are formed by lava piles that are too thick, or viscous, to flow far away from the vent.
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(True/False)
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Correct Answer:
False
One of the most common risks associated with volcanic activity involves lava flows.
(True/False)
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Poisonous gases from volcanic activity also pose a danger to humans and animals.
(True/False)
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____________ is the gradual settling of the Earth's surface that occurs because of subsurface movement of earth materials and the resulting loss of support below ground, which can occur naturally or by human activity, such as removal of groundwater.
(Short Answer)
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Most buildings and bridges collapse; roads, railways, pipes and cables destroyed; general triggering of other hazards can be described as what level of earthquake intensity:
(Multiple Choice)
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Volcanic ash flows remain close to the ground, but they can travel downhill from the volcano summit very quickly, up to 150 kilometers (90 miles) per hour, incinerating anything in their path as they roar down the slope.
(True/False)
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Composite volcanoes, also called stratovolcanoes, are large volcanoes that are also oceanic craters. True of False?
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A volcano is a vent in the surface of the Earth through which magma and associated gases and ash erupt.
(True/False)
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When the rock on both sides of the fault snaps, it releases the stored energy by producing:
(Multiple Choice)
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Areas that are prone to frequent volcanic activity are known as_____________, such as the one in Hawaii.
(Short Answer)
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Earthquake intensity is most commonly measured using the _____________________, a twelve-level scale based on direct and indirect measurements of seismic effects:
(Multiple Choice)
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The United States has experienced some very disastrous and catastrophic earthquakes in its history. Select two earthquakes described in chapter 4 and compare and contrast the intensity and damage for each.
(Essay)
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While the East Coast of the United States is threatened by tsunamis, there is essentially no risk of tsunamis on the Pacific coast.
(True/False)
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Which factor is very likely to infuence the impacts that an earthquake will have on a country or region?
(Multiple Choice)
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Pieces of evidence about the composition and structure of Earth's interior include:
(Multiple Choice)
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The major driving force behind landslides is gravity, assisted by ____________.
(Short Answer)
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