Which Earthquake Severity Scale Measures the Amplitude of Deflection of a Seismograph

question 4

Multiple Choice

Which earthquake severity scale measures the amplitude of deflection of a seismograph pen,standardized to an idealized distance of 100 km between epicenter and seismograph?

• A)Richter scale
• B)Mercalli scale
• C)seismic-moment magnitude scale

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Definitions:

Mode

The data point that is most frequently observed in a dataset.

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Variables in a statistical model that are presumed to influence or predict the outcome of dependent variables.

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Information collected for reference or analysis, often numeric, that can be used for calculating, reasoning, or measuring.

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