WorksheetsHomework 4 - Due October 10th, 2022
Total questions: 20
Worksheet time: 40mins
Name
Class
Date
1.
Base your answer to this question on the cross section below and on your knowledge of Earth science. The cross section represents a section of Earth’s lithosphere along the coast of Japan. The epicenter of a large magnitude earthquake that occurred on March 11, 2011 is indicated. Devastation occurred mainly in the low-lying coastal areas of Japan closest to the epicenter. Letter A represents a geologic feature. Refer to Figure 1 and answer the following Question: What most likely caused the major devastation along the flat coastal areas of Japan as a result of this earthquake?
a)
crustal downwarping
b)
lava flows
c)
landslides
d)
a tsunami
2.
Base your answer to this question on the cross section below and on your knowledge of Earth science. The cross section represents a section of Earth’s lithosphere along the coast of Japan. The epicenter of a large magnitude earthquake that occurred on March 11, 2011 is indicated. Devastation occurred mainly in the low-lying coastal areas of Japan closest to the epicenter. Letter A represents a geologic feature. Refer to Figure 1 and answer the following Question:
The geologic feature indicated by letter A is
a)
a hot spot
b)
an island arc
c)
an ocean trench
d)
an igneous intrusion
3.
Base your answer to this question on the cross section below and on your knowledge of Earth science. The cross section represents a section of Earth’s lithosphere along the coast of Japan. The epicenter of a large magnitude earthquake that occurred on March 11, 2011 is indicated. Devastation occurred mainly in the low-lying coastal areas of Japan closest to the epicenter. Letter A represents a geologic feature. Refer to Figure 1 and answer the following Question:
Which type of tectonic plate boundary is represented in the cross-section?
a)
complex
b)
transform
c)
convergent
d)
divergent
4.
What is occurring at the Southeast Indian Ridge?
a)
New oceanic crust is forming.
b)
Old oceanic crust is being destroyed.
c)
New continental crust is forming.
d)
Old continental crust is being destroyed.
5.
The first S-wave reaches a seismic station 22 minutes after an earthquake occurred. How long did it take the first P-wave to reach the same seismic station?
a)
8 minutes and 50 seconds
b)
10 minutes 00 seconds
c)
12 minutes 00 seconds
d)
12 minutes and 50 seconds
6.
Earthquake S-waves do not pass through which two interior Earth layers?
a)
rigid mantle and asthenosphere
b)
asthenosphere and stiffer mantle
c)
stiffer mantle and outer core
d)
outer core and inner core
7.
If it takes a P-wave five minutes to travel from the epicenter of an earthquake to a seismic station, approximately how long will it take an S-wave to travel that same distance?
a)
15 minutes
b)
12 minutes
c)
9 minutes
d)
4 minutes
8.
Which activity could best prepare residents along the Mediterranean coast to reduce the loss of human life during a future tsunami?
a)
Board up windows.
b)
Remove heavy objects from the walls in homes.
c)
Plan evacuation routes to higher ground.
d)
Build reinforced basements.
9.
Base your answer to this question on the seismogram below and on your knowledge of Earth science.
Refer to Figure 2 and answer the following Question:
Which statement best describes the arrival of P-waves and S-waves recorded at a station located closer to the epicenter of this same earthquake?
a)
The time difference between the arrival of the first P-wave and S-wave would be less than 4 minutes.
b)
The time difference between the arrival of the first P-wave and S-wave would be greater than 4 minutes.
c)
P-waves would be recorded, but no S-waves would arrive.
d)
S-waves would be recorded, but no P-waves would arrive.
10.
The first P-wave of an earthquake took 11 minutes to travel to a seismic station from the epicenter of the earthquake. What is the seismic station’s distance to the epicenter of the earthquake and how long did it take for the first S-wave to travel that distance?
a)
Distance to epicenter: 3350 km
S-wave travel time: 4 min 50 sec
b)
Distance to epicenter: 3350 km
S-wave travel time: 6 min 10 sec
c)
Distance to epicenter: 7600 km
S-wave travel time: 9 min
d)
Distance to epicenter: 7600 km
S-wave travel time: 20 min
11.
The magnitude of an earthquake is a number that represents the
a)
arrival time of the first P-wave
b)
difference in arrival times between P- and S- waves
c)
distance to the epicenter
d)
energy released by an earthquake
12.
A strong earthquake that occurs on the ocean floor could result in the formation of
a)
a tsunami
b)
a delta
c)
an El Niño event
d)
an ocean current
13.
A seismic station recorded the P-waves, but no S-waves, from an earthquake because S-waves were
a)
absorbed by Earth's outer core
b)
transmitted only through liquids
c)
weak and detected only at nearby locations
d)
not produced by this earthquake
14.
The map below shows changes in the position of the tsunami wave front produced by the 1964 Alaskan earthquake. The numbers indicate the time, in hours, for the wave front to reach the positions indicated by the isolines. If the wave front reached the Hawaiian Islands at 10:30 p.m., at approximately what time did the earthquake occur?
a)
1:30 p.m.
b)
5:30 p.m.
c)
3:30 a.m.
d)
4:30 a.m.
15.
The amount of matter something contains is called
a)
density
b)
volume
c)
mass
d)
weight
16.
What is the approximate density of a mineral with a mass of 300 grams that displaces 60 cubic centimeters of water?
a)
0.2 g/cm3
b)
5.0 g/cm3
c)
6.1 g/cm3
d)
12.2 g/cm3
17.
On the map below, points A through D represent locations on Earth’s surface. Which location is positioned over a mantle hot spot?
a)
A
b)
B
c)
C
d)
D
18.
The cross section below represents a pattern of magnetic field reversals preserved in the igneous bedrock of the oceanic crust east of the Mid-Atlantic ridge. Which cross section best represents the magnetic field pattern west of the Mid-Atlantic ridge?
a)
b)
c)
d)
19.
If a seismic station is 3200 km from an earthquake epicenter, what is the time needed for an S-wave to travel from the epicenter to the seismic station?
a)
4 min 40 sec
b)
6 min 0 sec
c)
10 min 40 sec
d)
11 min 10 sec
20.
The map below represents portions of three tectonic plates. Points A through D represent locations on Earth’s surface. Which location is closest to a zone of rifting?
a)
A
b)
B
c)
C
d)
D
100 %
