28.10.1 - Introduction to Attenuation
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Practice Questions
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What does attenuation refer to in seismic terms?
💡 Hint: Think about how ground shaking changes as you move away from where the earthquake originates.
What is Peak Ground Acceleration?
💡 Hint: Consider what metric indicates the strength of shaking during an earthquake.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the effect of distance on earthquake ground motion?
💡 Hint: Remember how the energy dissipates over distance.
True or False: PGA is a measure of energy released at the earthquake's source.
💡 Hint: Focus on what PGA specifically refers to in terms of measurement.
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Challenge Problems
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A 7.0 magnitude earthquake occurs at a distance of 30 km from a city. Using the appropriate ground motion prediction equations, estimate the expected PGA, considering site conditions of soft soil.
💡 Hint: Remember to account for the effects of soil type in your calculations.
Discuss how variations in local geology can create differing levels of expected ground shaking in earthquake-prone areas, and how engineers can adjust designs accordingly.
💡 Hint: Reflect on the relationship between geology and seismic energy propagation.
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