Focus and Epicenter of Earthquakes Exercise

Focus and Epicenter of Earthquakes

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Focus and Epicenter of Earthquakes

Understand the distinction between an earthquake's underground focus and its corresponding surface epicenter.

Questions

  1. MultiChoice

    What is the point inside the Earth where energy release first occurs in an earthquake?

  2. MultiChoice

    What is the point on Earth's surface directly above the focus called?

  3. MultiChoice

    What is another term for the focus of an earthquake?

  4. MultiChoice

    Where is ground shaking usually strongest on Earth's surface?

  5. MultiChoice

    What is the minimum number of seismograph stations needed to locate an epicenter?

  6. MultiChoice

    What is the method called that uses three seismic stations to locate an epicenter?

  7. MultiChoice

    What information do scientists use to find the distance from a seismic station to an epicenter?

  8. MultiChoice

    How are earthquakes classified based on their depth of focus?

  9. MultiChoice

    Which depth category of earthquakes generally causes the most surface damage?

  10. MultiChoice

    Where do deep-focus earthquakes most commonly occur?

  11. MultiChoice

    What does the radius of a circle drawn around a seismic station represent in triangulation?

  12. MultiChoice

    What is indicated by the single point where three triangulation circles intersect?