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WorksheetsFinding the Epicenter KC
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
What is the minimum number of seismic stations data is necessary to locate the epicenter in the triangulation method?
a)
one
b)
two
c)
three
d)
four
2.
From the seismogram, the distance to the epicenter can be determined by measuring
a)
the arrival time of surface waves
b)
the difference in the arrival times of the P and S waves
c)
the ratio of the amplitude of the longest P and S wave
d)
the speed of the surface waves
3.
What is the epicenter?
a)
The point on Earth's surface directly above the focus
b)
It is an instrument that records earthquake activity
c)
It is an agency that provides information on earthquakes
4.
___ waves are the first and fastest seismic waves.
a)
Surface waves
b)
S waves
c)
P waves
5.
An instrument that detects and measures earthquakes is a
a)
seismogram
b)
focus seismic map
c)
focus
d)
seismograph
6.
What happens to lag time the further you are from the epicenter?
a)
Increases
b)
Decreases
c)
Stays the same
d)
What is lag time?
7.
Where are the S-waves located on this seismogram?
a)
A
b)
B
c)
C
d)
D
8.
Where are the P-waves located on this seismogram?
a)
A
b)
B
c)
C
d)
D
9.
Where is the epicenter for this earthquake located based on triangulation?
a)
A
b)
B
c)
C
d)
D
10.
It is a method used to locate the epicenter of an earthquake.
a)
Echolocation
b)
Radar
c)
Experimentation
d)
Triangulation
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