Exam 10: Earthquakes and Earth's Interior

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What instrumentation permits the "Tsunami Warning System" to assess the possibility of a tsunami and decide when to raise the coastal alert?

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The deepest borehole ever drilled is ________ kilometres deep in Russia's Kola Peninsula.

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What is the premise for long-range forecasts regarding earthquakes, and what kind of observations can be made to this end?

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What intensity scale describes the extent of structural damage due to an earthquake and people's perceptions of the type of shaking?

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What is the ML calculated for a local earthquake with an S-P arrival difference of 2.0 sec and maximum S-wave amplitude of 1 mm?

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Which of the following statements is true?

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When vibrations (ground motion)from a distant earthquake reach a seismograph, the inertia of the suspended mass keeps it relatively stationary, while the Earth and the case of the instrument move, oscillating around it.

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Name two belts of great earthquakes, or describe their location?

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Study the cross section below. Study the cross section below.     a)Which of these two identical homes would suffer the most damage if an earthquake occurred along the active fault? ______________________________ b)Explain your answer. ___________________________________________________________________________ a)Which of these two identical homes would suffer the most damage if an earthquake occurred along the active fault? ______________________________ b)Explain your answer. ___________________________________________________________________________

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The ________ is a direct measure of the distance from a seismic station to the hypocentre of a distant earthquake.

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The largest lateral, ground displacement experienced at any location is produced by ________.

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The ________ is the seismic discontinuity that forms the boundary between the crust and mantle.

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What instrument is used to record earthquake vibrations?

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The ________ is used to record ground shaking and the earthquake-magnitude scale based on the largest seismic wave motion was invented by ________.

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P waves ________.

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The ________ discontinuity marks the boundary between the crust and mantle.

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Which one the following does not propagate through liquids?

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What two seismic wave observations support the existence of a liquid outer core?

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What happens to the energy released in an earthquake?

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________ is the widely accepted explanation for the mechanism that generates earthquakes.

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