Earthquake and Tectonic Plates Quiz
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Questions and Answers

What is the primary cause of earthquakes?

  • The collision of meteorites with the Earth's surface
  • The activities of volcanoes deep beneath the Earth's crust
  • The gravitational pull of the moon on the Earth
  • The movement of tectonic plates along fault lines (correct)

    • What is a seismograph used for?

  • Monitoring the movement of tectonic plates
  • Recording volcanic eruptions
  • Studying the impact of meteorite collisions
  • Measuring the strength and details of earthquakes (correct)

    • What are foreshocks in relation to earthquakes?

  • Smaller quakes that occur prior to the mainshock (correct)
  • The seismic waves that cause the most damage
  • The initial tremors felt before an earthquake
  • The aftershocks following a major earthquake

    • Why are geologists unable to predict when earthquakes will occur?

    <p>Activities along fault lines are unpredictable</p> Signup and view all the answers

    What happens when tension builds up between tectonic plates without any movement?

    <p>Earthquakes happen due to the stress built up around fault lines</p> Signup and view all the answers

    What is the primary purpose of a seismograph?

    <p>To measure the movement of ground during an earthquake</p> Signup and view all the answers

    Why are foreshocks less likely to do damage than aftershocks?

    <p>Because foreshocks are smaller in magnitude</p> Signup and view all the answers

    What causes aftershocks to occur many days or years after a main quake?

    <p>The transfer of energy from rocks under Earth's surface during a main quake</p> Signup and view all the answers

    Why are aftershocks sometimes just as hazardous as the main quake itself?

    <p>Because they are typically stronger than the main quake</p> Signup and view all the answers

    How are foreshocks and aftershocks related to earthquakes?

    <p>Foreshocks occur before an earthquake, while aftershocks occur after an earthquake</p> Signup and view all the answers

    What defines a quake as a foreshock?

    <p>It is smaller in magnitude than the mainshock</p> Signup and view all the answers

    How are aftershocks different from foreshocks?

    <p>Aftershocks occur after the mainshock, while foreshocks occur before</p> Signup and view all the answers

    Why can't earthquakes be predicted using foreshocks?

    <p>It is impossible to tell whether a quake is a foreshock or a mainshock when it initially occurs</p> Signup and view all the answers

    What causes aftershocks to occur?

    <p>The build-up of stress energy released along a fault line</p> Signup and view all the answers

    How long can aftershocks last?

    <p>A few days up to years after a mainshock</p> Signup and view all the answers

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