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What do seismologists use to determine
when an earthquake started? A seismogram
How is the intensity of an earthquake
determined? By the amount of damage it
causes
What is another word for an earthquake’s
strength? Magnitude
What determines the strength of an
earthquake? The amount of ground motion
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What are earthquake waves that travel
through Earth called? Seismic waves
What do seismologists use to measure
earthquake strength? Richter magnitude
scale
Which seismic waves do the greatest
damage? Surface waves
What is the science in which earthquakes are
studied called? Seismology
What type of motion creates strike-slip
faults? Transform motion
10. What scale is used to measure the strength
of an earthquake? Richter magnitude
11. Where do most earthquakes happen? At the
edges of tectonic plates
12. How much more ground motion does an
earthquake with a magnitude of 6.0 have
than one with a magnitude of 4.0? 100
times as much
9.
What is NOT a fault that leads to an
earthquake? An abnormal fault
14. What is the measurement of the strength of
an earthquake called? Magnitude
15. What is the degree to which people feel an
earthquake and how much damage it causes
called? Intensity
16. Describe primary seismic waves. They can
travel through solids, liquids, and gases
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What is the point on Earth’s surface directly
above an earthquakes starting point? The
epicenter
18. What is the name of an instrument that
records vibrations in the ground and
determines the location and strength of an
earthquake? A seismograph
19. What is the focus? The point along a fault
where the first motion of an earthquake
occurs
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20. What is the Modified Mercalli Scale?
A scale
used to measure earthquake damage
21. What is a seismogram? The tracing of
earthquake motion that is created by a
seismograph
22. What is deformation? The change in the
shape of rock in response to stress
23. What are S waves? Waves that are known as
secondary or shear waves
24. What is seismology?
The branch of science
that studies earthquakes
25. What is the names of the first seismic waves
to arrive in an earthquake? P waves
26. What is elastic rebound? The snapping back
of deformed rock to its previous shape
27. What is the focus of an earthquake? The
beginning point of an earthquake