Earthquake Classifications and Causes Quiz
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Questions and Answers

What is the seismometer?

  • The point on the earth’s surface diametrically opposite to the epicenter
  • The internal part of the seismograph used to record the motion of the ground during an earthquake (correct)
  • The place of origin of the earthquake in the interior of the earth
  • The recordings of the ground shaking at the specific location of the seismograph

    • What is the epicenter of an earthquake?

  • The point on the earth’s surface diametrically opposite to the epicenter
  • The place on the earth’s surface directly above the center of the earthquake (correct)
  • An imaginary line joining the points of same intensity of the earthquake
  • The place of origin of the earthquake in the interior of the earth

    • What does an isoseismal represent?

  • The point on the earth’s surface diametrically opposite to the epicenter
  • An imaginary line joining the points of same intensity of the earthquake (correct)
  • The recordings of the ground shaking at the specific location of the seismograph
  • The place of origin of the earthquake in the interior of the earth

    • Which term refers to the destruction caused by an earthquake at its worst point?

    <p>Epicenter</p> Signup and view all the answers

    What is the coseismal?

    <p>A line joining points where earthquake waves have arrived at the same time</p> Signup and view all the answers

    In homogeneous grounds with plain surfaces, what happens to the isoseismal and coseismal?

    <p>They coincide</p> Signup and view all the answers

    What is magnitude in relation to earthquakes?

    <p>Proportional to the energy released by an earthquake at the focus</p> Signup and view all the answers

    How is intensity represented?

    <p>By Roman Numerals (e.g., II, IV, IX)</p> Signup and view all the answers

    What type of faulting dominates at a constructive plate boundary?

    <p>Normal faulting</p> Signup and view all the answers

    What type of boundary is formed when plates move towards each other?

    <p>Convergent boundary</p> Signup and view all the answers

    Where do most of the earthquakes with magnitudes greater than 6.0 occur?

    <p>Convergent boundaries</p> Signup and view all the answers

    What type of faulting is dominant at a transform boundary?

    <p>Strike-slip faulting</p> Signup and view all the answers

    Which type of earthquake is characterized by a focus depth of more than 250 km?

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

    What type of earthquake is exclusively due to internal causes such as disturbances in geological formations?

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

    What type of boundary is formed when tectonic plates move apart from each other?

    <p>Divergent Boundary</p> Signup and view all the answers

    What is the approximate range of thickness for tectonic plates in the Earth's crust?

    <p>5–70 km</p> Signup and view all the answers

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