Practice Depth of Focus - 28.12.3 | 28. Magnitude and Intensity of Earthquakes | Earthquake Engineering - Vol 2
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28.12.3 - Depth of Focus

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define depth of focus.

💡 Hint: Think about how deep below the ground the earthquake occurs.

Question 2

Easy

What depth categorizes a shallow-focus earthquake?

💡 Hint: Is it deeper or shallower than 70 km?

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the depth of focus for shallow-focus earthquakes?

  • < 70 km
  • 70-300 km
  • > 300 km

💡 Hint: Think about the general definition of shallow versus deep.

Question 2

True or False: Deeper earthquakes cause more intense surface shaking than shallow ones.

  • True
  • False

💡 Hint: Consider the relationship between depth and intensity.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

An earthquake occurs with a focus depth of 75 km. A nearby town experiences significant shaking, while another town 50 km away experiences mild effects. Discuss how depth of focus and distance influenced the observed intensity differences.

💡 Hint: Consider how the distance from the epicenter interacts with depth.

Question 2

Evaluate the effects of a 65 km depth earthquake on two different soil types: soft and hard rock. Predict the intensity variances and the potential damage each soil type may face.

💡 Hint: Think about how deep quakes interact with different soil types.

Challenge and get performance evaluation