Earthquake Intensity Variation Quiz
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Questions and Answers

How can the intensity of effects from a single earthquake vary in different places?

  • Due to the distance from the epicenter (correct)
  • Influenced by the time of day the earthquake occurs
  • Dependent on the earthquake's magnitude
  • Based on the earthquake's duration
  • Which type of foundation is likely to experience less damage according to the text?

  • Buildings constructed on deep soil
  • Buildings constructed on clay
  • Buildings constructed on loose sand
  • Buildings constructed on solid rock (correct)
  • What factor is highlighted as a key influencer of the varied effects caused by a single earthquake?

  • Proximity to fault lines
  • Local weather conditions
  • Distance from the epicenter (correct)
  • Earthquake's Richter scale rating
  • Which element plays a significant role in determining the impact of a single earthquake on different locations?

    <p>Distance from the epicenter</p> Signup and view all the answers

    What type of construction is mentioned in the text as more susceptible to damage?

    <p>Buildings with deep foundations</p> Signup and view all the answers

    What characteristic of a single earthquake can lead to varying intensities of effects experienced by different regions?

    <p>Location of the epicenter</p> Signup and view all the answers

    Which factor plays a significant role in determining the vulnerability of a building to damage?

    <p>The type of foundation the building rests upon</p> Signup and view all the answers

    What is a crucial variable that influences the diverse impact levels resulting from a single earthquake?

    <p>Distance from the epicenter</p> Signup and view all the answers

    What aspect of the site can influence the structural integrity of a building?

    <p>Composition of the underlying bedrock</p> Signup and view all the answers

    Which type of soil is suggested as less conducive to building stability?

    <p>Loose, unstable soil prone to shifting</p> Signup and view all the answers

    What is required for obtaining the best records near a fault zone?

    <p>Sensitive instruments must be in place beforehand near the fault zone.</p> Signup and view all the answers

    Why is it important for instruments to survive the earthquake near the fault zone?

    <p>To ensure that the instruments can continue to work and record data during and after the earthquake.</p> Signup and view all the answers

    What does the text suggest about the accuracy of laboratory experiments simulating real earthquake conditions?

    <p>There are no guarantees that laboratory experiments accurately simulate real earthquake conditions even with good records from an actual earthquake.</p> Signup and view all the answers

    What would likely happen if instruments are not in place near a fault zone beforehand?

    <p>The instruments would provide inaccurate records.</p> Signup and view all the answers

    Why might sensitive instruments need to be placed near a fault zone?

    <p>To obtain accurate data before and during an earthquake.</p> Signup and view all the answers

    What phenomenon has been observed to occur in the electrical resistivity of rocks before an earthquake?

    <p>Increase, then decrease</p> Signup and view all the answers

    How does the electrical resistivity of rocks behave after decreasing and before an earthquake?

    <p>It remains constant</p> Signup and view all the answers

    What effect does an approaching earthquake have on the electrical resistivity of rocks?

    <p>Increase, then decrease</p> Signup and view all the answers

    If the resistance of rocks to electric current shows a pattern of decrease followed by increase, what event might be imminent?

    <p>An earthquake</p> Signup and view all the answers

    Which of the following patterns in electrical resistivity would be least likely to precede an earthquake?

    <p>Remain constant</p> Signup and view all the answers

    What rock properties or phenomena were studied in the early stages for earthquake prediction?

    <p>Earthquake precursors</p> Signup and view all the answers

    Where did the 1989 Loma Prieta earthquake occur?

    <p>San Andreas Fault</p> Signup and view all the answers

    Which seismic zone is likely to be the site of the next major earthquake to cause serious damage to Mexico City?

    <p>Subduction zone</p> Signup and view all the answers

    Which region is at risk of serious damage from the next major earthquake?

    <p>Mexico City</p> Signup and view all the answers

    What was earthquake prediction primarily based on in its early stages?

    <p>Study of rock properties</p> Signup and view all the answers

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