Seismographs and Reading Seismograms

Questions

1. MultiChoice

   What instrument is used to detect and record earthquake waves?

2. MultiChoice

   What is the paper or digital record of ground motion produced by a seismograph called?

3. MultiChoice

   Which property of physics keeps the heavy suspended mass still while the frame shakes in a seismograph?

4. MultiChoice

   Which wave arrival is recorded first on a typical seismogram?

5. MultiChoice

   Which wave arrival appears second on a seismogram?

6. MultiChoice

   What is the time difference between the arrival of P waves and S waves called?

7. MultiChoice

   What does a longer S-P time interval indicate about the earthquake epicenter location?

8. MultiChoice

   Which waves create the tall squiggly lines with largest height on a seismogram?

9. MultiChoice

   What variable is plotted on the horizontal axis of a seismogram graph?

10. MultiChoice

    What variable is plotted on the vertical axis of a seismogram graph?

11. MultiChoice

    What chart is used to convert S-P lag time into epicentral distance?

12. MultiChoice

    What is a scientist who specializes in studying earthquakes and seismic waves called?