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9.9 - Earthquakes: The Threats

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✅EvaluateQuestion 1 of 21

Which term describes the measure of the power of an earthquake?

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✅EvaluateQuestion 2 of 21

The modified Mercalli scale is mainly used to measure

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✅EvaluateQuestion 3 of 21

A major earthquake is most likely to cause

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✅EvaluateQuestion 4 of 21

Which of the following is a common earthquake hazard in steep Caribbean terrain?

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✅EvaluateQuestion 5 of 21

Which statement is TRUE about magnitude and Mercalli intensity?

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✅EvaluateQuestion 6 of 21

An earthquake disaster occurs when

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✅EvaluateQuestion 7 of 21

Which coastal hazard can be triggered by a strong offshore earthquake in the Caribbean?

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✅EvaluateQuestion 8 of 21

A magnitude 7.0 earthquake occurs near the Lesser Antilles. Which location is MOST likely to report the highest Mercalli intensity?

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✅EvaluateQuestion 9 of 21

In a coastal Caribbean community built on water-logged sand, the greatest additional risk during strong shaking is

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✅EvaluateQuestion 10 of 21

A report states: 'People ran outside; some plaster cracked; light furniture moved.' This best fits the idea of

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✅EvaluateQuestion 11 of 21

Why might two towns in Jamaica experience different Mercalli intensities during the same earthquake?

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✅EvaluateQuestion 12 of 21

A school in Port of Spain practises 'Drop, Cover, Hold On' drills. This is mainly an example of reducing

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✅EvaluateQuestion 13 of 21

Which combination is MOST likely to increase earthquake damage in a Caribbean capital city?

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✅EvaluateQuestion 14 of 21

After an earthquake, a bridge collapses and electricity is cut for several days. These are BEST described as

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✅EvaluateQuestion 15 of 21

A magnitude 6.8 earthquake occurs. Town A reports Mercalli VIII and Town B reports Mercalli V. Which explanation is MOST reasonable?

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✅EvaluateQuestion 16 of 21

A coastal hotel in Barbados is retrofitted and meets strong building standards. During a quake, damage is limited. What does this BEST show?

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✅EvaluateQuestion 17 of 21

A news report states: 'The earthquake was only magnitude 5.5, but damage was severe in one district.' Which factor MOST likely explains this?

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✅EvaluateQuestion 18 of 21

A magnitude 7.2 offshore earthquake occurs north of Puerto Rico. Which TWO threats are most immediately linked for coastal areas?

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✅EvaluateQuestion 19 of 21

Which set of statements BEST describes the difference between the two scales?

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✅EvaluateQuestion 20 of 21

A hillside community in Dominica experiences strong shaking. Rain falls heavily the next day. Which two-step risk is MOST likely?

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✅EvaluateQuestion 21 of 21

A planner must choose one action to reduce earthquake disaster risk in a Caribbean city. Which choice gives the BEST long-term benefit?

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✅EvaluateQuestion 1 of 21

Which term describes the measure of the power of an earthquake?

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