Section #: 19.3
Measuring and Locating an Earthquake
Practice Test
1.
How many times larger is a magnitude 3 than a magnitude 1 earthquake on the Richter scale?
a.
1/10 times
b.
10 times
c.
100 000 times
d.
100 times
Hint
2.
What are shallow, intermediate, and deep earthquake classifications based on?
a.
amplitude of the largest wave
b.
the amount of damage
c.
the depth of the focus
d.
frequency of the largest wave
Hint
3.
What is a rating for an earthquake from the modified Mercalli scale based on?
a.
its P-wave
b.
amplitude of the largest wave
c.
frequency of the waves
d.
amount of damage
Hint
4.
Why are three circles needed to determine the epicenter, as shown in the figure?
a.
The more measurements, the better.
b.
If only two circles are used, there are two possible locations.
c.
Scientists always take measurements in threes.
d.
The epicenter can move.
Hint
5.
What is a rating from the Richter scale based on?
a.
damage from the largest wave
b.
size of the largest wave
c.
wavelength of the waves
d.
frequency of the waves
Hint
6.
According to the map, a seismic station in which city would be the first to detect seismic waves from an earthquake occurring in Mexico City?
a.
Chihuahua
b.
Acapulco
c.
Houston
d.
Boulder
Hint
