Exam 5: Weathering and Soil

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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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C

What was the largest Richter magnitude ever recorded for an earthquake on a Wood- Anderson seismograph?

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What does an S- wave do to the rock it passes through?

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Which one of the following statements is correct?

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__________is the maximum possible damage designation on the Mercalli scale.

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What happens inside a rock as a wave front from a P wave passes through?

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Energy is stored in rocks adjacent to the site of a future earthquake as_________ .

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The__________ is the point of origination for an earthquake.

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What does a P wave do to the rock it passes through?

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Which is not a criterion for determining an earthquake's Mercalli intensity?

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What are the Earth's three most distinctive internal regions (layers) based on composition?

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What causes the shadow zone for no S- wave arrivals beyond epicentral angles of 105°?

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What is the average S- wave velocity (km/sec) if the seismic station is 2000 km from the epicentre?

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The epicentre of an earthquake is the ___________.

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Which is the correct relationship for the relative velocities of the different types of seismic waves?

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Which one of the following is true regarding tsunamis?

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The ________transmits P waves but not S waves.

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How many destructive tsunamis are there each year?

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Which one of the following statements concerning foci and epicentres is correct?

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________formulated the elastic rebound theory after the ___________earthquake.

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