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WorksheetsEarthquakes
Total questions: 45
Worksheet time: 12mins
The distance between an epicenter and seismograph’s location can be calculated by using the
arrival time of the first P-wave
difference in arrival times between P- and S- waves
amplitude of the p-wave
energy released by an earthquake
Which evidence recorded at seismic stations following an earthquake supports the inference that Earth’s interior changes from solid rock to molten iron and nickel at the mantle-core boundary?
P-waves arrive earlier than S-waves.
P-waves and S-waves are both recorded at all stations.
Only S-waves are recorded at all stations.
Only P-waves are recorded on the opposite side of Earth.
The place where an earthquake originates inside the Earth's surface is called...
Epicenter
Focus
Underground
Crust
Which city is closest to the epicenter?
A
B
C
Which seismogram represents a city that is far from the epicenter of an earthquake?
New York, NY
Nome, Alaska
Guadalajara, Mexico
What scale determines the amount of damage an earthquake causes?
Richter scale
Mercalli scale
Moment magnitude scale
seismographic scale
What is the minimum number of seismograph stations needed to locate an earthquake epicenter?
1
2
3
5
All of the following are reasons some buildings are damaged more than others during an earthquake EXCEPT....
The strength of the building materials.
How close the building was to the earthquake's epicenter.
What type of soil the building sat on.
The people living inside of the building.
The design of the building.
At which point marks the epicenter of the earthquake?
A
B
C
D
P waves and S waves are also known as
surface waves
ground waves
body waves
first waves
The strain which causes a material to twist is known as
stress
tension
compression
shear
A seismogram is located 4500 km away from the epicenter of an earthquake. What is the difference in time between when the P-waves reach the seismogram and the S-waves reach the seismogram?
5 1/2 minutes
6 minutes
10 minutes
22 minutes
Which type of seismic wave is shown in the picture?
Princess Wave
Primary Wave
Secondary Wave
Love Wave
Which type of seismic wave is shown in the picture?
Princess Wave
Primary Wave
Secondary Wave
Love Wave
Letter A is labeling the:
Focus
Epicenter
Fault Line
Volcano
Letter C is labeling the:
Focus
Epicenter
Fault Line
Volcano
Which wave causes the most damage?
Primary
Surface
Secondary
Princess
If the P-wave takes 7 minutes to arrive. The epicenter is about how far away?
2000 km
4000 km
6000 km
8000 km
If the S-wave traveled 9000 km, the travel time for the wave would be about:
12 minutes
22 minutes
cannot be determined
3 minutes
If the lag time recorded by the seismograph is 3 minutes between the P-wave and S-wave then the epicenter is about how far away?
100 km
2000 km
5000 km
8000 km
In this picture the epicenter is located:
Anywhere on both of the circles
Between the 2 circles in the overlapping section
The 2 points where the circles intersect
Nowhere in this picture because a third circle is needed
With increasing distance from the epicenter, the time difference between the arrival times of the P-wave and S-wave ______________________.
increases
decreases
stays the same
is equal
Which part of the seismogram shows the start of the surface waves?
A
B
C
A and B
Which of the following can trigger a tsunami?
undersea earthquake
undersea landslides
eruption of an oceanic volcano
all of these
The Richter scale using a logarithmic scale which means...
The scale is 1-10
Each interval increase is 32 times greater
Category 10 is 10 times more intense than a category 1
The same scale NASA uses
