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Unit 4 Earthquakes 2023

Total questions: 50

Worksheet time: 2hrs 34mins

Name
Class
Date
1.

What is the crust and upper area of the mantle called?

a)

focus

b)

tsunami

c)

epicenter

d)

lithosphere

2.

What is the beginning point of an earthquake?

a)

focus

b)

epicenter

c)

tsunami

d)

lithosphere

3.

What are the vibrations of energy flowing from the focus?

a)

epicenter

b)

tsunami

c)

focus

d)

seismic waves

4.

What is the point on Earth's surface directly above the focus?

a)

tsunami

b)

seismic wave

c)

epicenter

d)

focus

5.

The strength of an earthquake's seismic waves...

a)

epicenter

b)

magnitude

c)

tsunami

d)

focus

6.

Giant ocean waves are called?

a)

epicenter

b)

seismic wave

c)

focus

d)

tsunami

7.

When plate boundaries move horizontally past each other?

a)

reverse fault

b)

normal fault

c)

abnormal fault

d)

strike-slip fault

8.

Plate boundaries that push together forcing rock upward is called?

a)

reverse fault

b)

normal fault

c)

abnormal fault

d)

strike-slip fault

9.

Plate boundaries move apart forming a gap is called?

a)

reverse fault

b)

normal fault

c)

abnormal fault

d)

strike-slip fault

10.

Slower destructive waves that occur on the surface of the earth are what type of earthquake waves?

a)

love wave

b)

surface waves

c)

P wave

d)

body waves

11.
The huge pieces of the earth's crust are called ____________________________. 
a)
crust
b)
plates
c)
directions
d)
seismos
12.
The epicenter of an earthquake is
a)
The point below the surface where rock begins to break and the first motion occurs
b)
The seismic station closest to the earthquake
c)
The place where the greatest damage occurs
d)
The point on the surface directly above the focus
13.
An instrument that detects and measures earthquakes is a 
a)
seismogram
b)
focus seismic map
c)
focus
d)
seismograph 
14.

Which of the following is NOT a cause of an earthquake?

a)

Collapse of Cavern

b)

Eruption of Volcano

c)

Lightning Strikes

d)

Moving Tectonic Plates

15.

The focus of an earthquake is

a)

The point (below Earth's surface) where rock breaks

b)

The closest seismic station

c)

The place where the greatest damage occurs

d)

A fault

16.
Many earthquakes happen along the borders of...
a)
Countries
b)
Tetonic Plates
c)
Climate Zones
d)
None of the above.
17.

What is this area known as

a)

Earthquake Epicenter

b)

Ring of Fire

c)

San Andres Fault

18.

What is the fault in California called?

a)

San Diego Fault

b)

Pacific Plate

c)

San Andres Fault

19.

After an earthquake this could happen.

a)

Tsunami

b)

Landslide

c)

Fires

d)

All of the Above

20.

A tsunami is

a)

an earthquake aftershock

b)

A large wave that occurs after an earthquake

c)

An area in the pacific ocean

21.

A sudden and violent shaking of the ground.

a)

Earthquake

b)

Tsunami

c)

Volcanic Eruption

22.

What happens to P-waves and S-waves from an earthquake when they reach the outer core?

a)

S-waves are transmitted through the outer core, but P-waves are not transmitted.

b)

P-waves are transmitted through the outer core, but S-waves are not transmitted.

c)

Both P-waves and S-waves are transmitted through the outer core.

d)

Neither P-waves nor S-waves are transmitted through the outer core.

23.

The distance between an epicenter and seismograph’s location can be calculated by using the

a)

arrival time of the first P-wave

b)

difference in arrival times between P- and S- waves

c)

amplitude of the p-wave

d)

energy released by an earthquake

24.

Only P-waves were recorded at seismic station C because P-waves travel

a)

only through Earth’s interior, and S-waves travel only on Earth’s surface

b)

fast enough to penetrate the core, and S-waves travel too slowly

c)

through iron and nickel, while S-waves cannot

d)

through liquids, while S-waves cannot

25.

After a sudden snap in the earthquake, the rock returns back to its original shape.

a)

rebound

b)

deformed

c)

larger

d)

small

26.

Use the diagram to answer #12

a)

Epicenter

b)

Wave Fronts

c)

Fault

d)

Focus

27.

Use the diagram to answer #11

a)

Epicenter

b)

Wave Fronts

c)

Fault

d)

Focus

28.

Which type of stress causes deformation that leads to earthquakes at converging plate boundaries?

a)

tension

b)

stretching

c)

shear stress

d)

compression

29.

Use the diagram to answer #13

a)

Epicenter

b)

Wave Fronts

c)

Fault

d)

Focus

30.

Use the diagram to answer #14

a)

Epicenter

b)

Wave Front

c)

Fault

d)

Focus

31.
Which type of wave is the first to arrive after an earthquake occurs?
a)
P Wave
b)
Rayleigh Wave
c)
S Wave
d)
Shear Wave
32.
P Waves can move through which of the following?
a)
Gas
b)
Liquid
c)
Solid
d)
All of these
33.
S Waves can move through which of the following?
a)
Gas
b)
Liquid
c)
Solid
d)
All of these
34.

Earthquakes most often occur

a)

in the middle of plates

b)

near plate boundaries

c)

where thunderstorms are

d)

along the coast

35.
Which city is closest to the epicenter?  
a)
A
b)
B
c)
C
36.
Where is the epicenter for this earthquake located based on triangulation?
a)
A
b)
B
c)
C
d)
D
37.

Around what time did the first P wave get detected?

a)

100 sec

b)

120 sec

c)

150 sec

d)

160 sec

38.

Which location is farther from the epicenter?

a)

Seismogram B (top)

b)

Seismogram C (bottom)

39.

Which portion of the Earth can S waves NOT travel through?

a)

Crust

b)

Mantle

c)

Core

40.

Which letter represents surface waves?

a)

A

b)

B

c)

C

d)

All are surface waves

41.

Which station was closest to the earthquake's epicenter?

a)

Station A

b)

Station B

c)

Station C

42.

Scientists are able to create an image like this by studying

a)

electromagnetic waves

b)

P and S waves

c)

P and Surface waves

d)

S and Surface waves

43.

This type of wave travels along Earth's crust and can be very destructive.

a)

P wave

b)

S wave

c)

Surface wave

d)

EM waves

44.

Second waves to arrive in an earthquake

a)

P waves

b)

S waves

c)

Surface waves

45.

The crack in the surface of the Earth along which rocks break and earthquakes sometime occur:

a)

focus

b)

fault

c)

epicenter

d)

hypocenter

46.

The place where an earthquake originates inside the Earth's surface is called...

a)

Epicenter

b)

Focus

c)

Underground

d)

Crust

47.

The place on the Earth's surface, above the origin of the earthquake.

a)

Epicenter

b)

Focus

c)

Surface

d)

Crust

48.

What is the minimum number of seismograph stations needed to locate an earthquake epicenter?

a)

1

b)

2

c)

3

d)

5

49.
Where are the P-waves located on this seismogram?
a)
A
b)
B
c)
C
d)
D
50.
Which of the statements best describes the relationship between lag time and distance from epicenter? 
a)
The longer the lag time, the closer the distance.
b)
The longer the lag time, the farther the distance. 
c)
The shorter the lag time, the farther the distance. 
d)
There is no relationship. 

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