Exam code: 8GE0
Study Figure 1
Figure 1
Aftershocks reported following two earthquakes in Haiti, 2010 and 2021
Compare the distribution of aftershocks between the two earthquakes.
Suggest one reason for the different pattern of aftershocks shown in 2021.
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Explain two hazards caused by volcanoes.
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Explain the global distribution of earthquake hazards.
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Study Figure 1a
Figure 1a
Significant earthquakes (magnitude 5 and above) in Iran and Iraq, 1995–2017
Compare the data about earthquakes before and after 2005.
Suggest one reason why this data might concern the governments of Iraq and Iran.
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Tectonic mega-disasters can have regional or even global impacts.
Explain two impacts of a tectonic mega-disaster.
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Explain the global distribution of volcanic eruptions.
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Study Figure 1a
Figure 1a
A satellite image of the Tsangpo River in the Himalayas
Calculate the area of Box A in Figure 1a. The length has been calculated for you.
Show your working.
Give your answer to the nearest whole number.
.............................................................. km2
Study Figure 1b. Earthquakes occurred in this region in 2017.
Figure 1b
A photo of a gorge on the Tsangpo River, further upstream
Suggest one factor that could increase hazard risk in Tsangpo Gorge, shown in Figure 1b.
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Explain two tectonic processes that occur at a convergent plate margin.
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Identify which hazard is a primary impact of an earthquake.
Aftershocks
Crustal fracturing
Pyroclastic flow
Tsunamis
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Study Figure 1
Figure 1
Aftershocks reported after the February 2018 earthquake in Papua New Guinea
Papua New Guinea experienced a magnitude 7.5 earthquake in February 2018.
Figure 1 shows the frequency of the aftershocks that were reported.
Calculate the mean number of aftershocks per day.
Show your working.
Give your answer to 1 decimal place.
Suggest one reason for the changing number of aftershocks each day.
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Explain why some tectonic hazards occur away from plate boundaries.
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State which type of earthquake wave travels fastest.
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Study Figure 1a
Figure 1a
Reported ground shaking after two earthquakes in Taiwan in the Pacific Ocean
Compare the distribution of reported ground shaking between the February and November earthquakes.
Suggest one reason for the pattern of reported ground shaking in the February earthquake.
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Explain how plate tectonic theory is used to explain plate movements.
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State one tectonic hazard that can cause coastal flooding.
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Explain two characteristics of volcanic hotspots.
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Explain why volcanic eruptions vary in their magnitude.
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