Question 1

Atlantic coastal regions are at risk of a giant tsunami generated by landslides in the _______________ Islands.

Accepted Answer

Canary

Question 2

Explain several conditions that will change the shape and force of a tsunami as it contacts the shoreline, and the effect that each condition will potentially have.

Accepted Answer

A successful answer will include the cause and effect of at least three of the following: 
 - if the tsunami enters a bay or river mouth, the height of the wave will increase as the opening narrows 
 - tsunami waves change direction as they pass over shallow water and affect all sides of an island as a result 
 - as tsunami waves cross into shallow water they will react with the bottom and slow down, creating shorter waves 
 - shorter wavelengths in shallow water will result in increased wave height ​

Question 3

Someone fleeing a tsunami should be safe once they reach a point 100 m from shore and 10 m above water level.

Accepted Answer

A) True 
 B)False  False

Question 4

Which type of event is a source of tsunami danger for the northeastern U.S.?

Accepted Answer

A) A subduction-zone earthquake along the coast of Africa. 
B) A subduction-zone earthquake off the coast of the northeastern U.S. 
C) A transform-fault earthquake on the Mid-Atlantic Ridge. 
D) Flank collapse of a volcano in Sardinia. 
E) Flank collapse of a volcano in the Canary Islands. 
A) A subduction-zone earthquake along the coast of Africa. 
B) A subduction-zone earthquake off the coast of the northeastern U.S. 
C) A transform-fault earthquake on the Mid-Atlantic Ridge. 
D) Flank collapse of a volcano in Sardinia. 
E) Flank collapse of a volcano in the Canary Islands.

Question 5

The largest displacement of water from an undersea earthquake would have an amplitude of about ____ m.

Accepted Answer

A) 1 
B) 3 
C) 5 
D) 10 
E) 15 
A) 1 
B) 3 
C) 5 
D) 10 
E) 15

Question 6

Discuss the process of tsunami creation from an earthquake in an offshore region of a subduction zone. What are the key factors affecting the strength of the tsunami?

Accepted Answer

An earthquake on the subduction zone tri

Question 7

Vegetation mitigates tsunami effects except when ____.

Accepted Answer

A) it is the form of trees, not grasses and shrubs 
B) trees become uprooted and become dangerous projectiles 
C) the vegetation is too close to the shore 
D) it is in the form of grasses, not trees and shrubs 
E) trees are not present 
A) it is the form of trees, not grasses and shrubs 
B) trees become uprooted and become dangerous projectiles 
C) the vegetation is too close to the shore 
D) it is in the form of grasses, not trees and shrubs 
E) trees are not present

Question 8

If you are alerted that a tsunami is approaching, your first reaction should be to ____.

Accepted Answer

A) immediately seek protection in groves of vegetation 
B) immediately head for a location as far inland as possible 
C) immediately head for a location as high above sea level as possible 
D) travel in an orderly safe fashion to a location as far inland as possible 
E) wait for instructions from emergency personnel 
A) immediately seek protection in groves of vegetation 
B) immediately head for a location as far inland as possible 
C) immediately head for a location as high above sea level as possible 
D) travel in an orderly safe fashion to a location as far inland as possible 
E) wait for instructions from emergency personnel

Question 9

As a tsunami enters shallow water, ____.

Accepted Answer

A) the wave speed will increase, and the height will increase 
B) the wave speed will increase, and the height will decrease 
C) the wave speed will decrease, and the height will decrease 
D) the wave speed will decrease, and the height will increase 
E) the wave speed remains the same as the height increases 
A) the wave speed will increase, and the height will increase 
B) the wave speed will increase, and the height will decrease 
C) the wave speed will decrease, and the height will decrease 
D) the wave speed will decrease, and the height will increase 
E) the wave speed remains the same as the height increases

Question 10

Tsunami detection networks are ____.

Accepted Answer

A) accurate at predicting the arrival of a nearby tsunami, but not a far-field tsunami 
B) rapid enough to predict the arrival of a tsunami generated nearby in time for people to evacuate 
C) inaccurate at predicting arrival times of tsunamis generated in the middle of the Pacific Ocean 
D) accurate at predicting the arrival of a distant tsunami, but rarely provide sufficient warning of tsunami generated by a nearby earthquake 
E) available in the Atlantic but not the Pacific Ocean 
A) accurate at predicting the arrival of a nearby tsunami, but not a far-field tsunami 
B) rapid enough to predict the arrival of a tsunami generated nearby in time for people to evacuate 
C) inaccurate at predicting arrival times of tsunamis generated in the middle of the Pacific Ocean 
D) accurate at predicting the arrival of a distant tsunami, but rarely provide sufficient warning of tsunami generated by a nearby earthquake 
E) available in the Atlantic but not the Pacific Ocean

Question 11

Tsunami wave motion drags on the bottom of shallow water, decreasing the wave height.

Accepted Answer

A) True 
 B)False

Question 12

Tsunami from oceanic volcanoes are most likely to be caused by ____.

Accepted Answer

A) rising upward suddenly 
B) sinking downward suddenly 
C) creating heat that boils seawater 
D) ejecting large amounts of gas 
E) submarine volcanic explosions 
A) rising upward suddenly 
B) sinking downward suddenly 
C) creating heat that boils seawater 
D) ejecting large amounts of gas 
E) submarine volcanic explosions

Question 13

In a subduction zone, the descending oceanic plate may deform the continental plate, creating a(n) _______________. (two words)

Accepted Answer

The answer of In a subduction zone, the descending oceanic...

Question 14

In coastal subduction zones, the oceanic plate can rise suddenly, triggering a tsunami.

Accepted Answer

A) True 
 B)False

Question 15

In the deep ocean, tsunami waves will travel at speeds approaching ____ km/hr.

Accepted Answer

A) 1 
B) 25 
C) 100 
D) 900 
E) 5,000 
A) 1 
B) 25 
C) 100 
D) 900 
E) 5,000

Question 16

The strength of a tsunami created by a landslide depends most heavily on the ____.

Accepted Answer

A) type of rock contained in the landslide 
B) volume of material in the landslide 
C) height of fall of the landslide 
D) strength of the earthquake causing the landslide 
E) volume of water under the landslide 
A) type of rock contained in the landslide 
B) volume of material in the landslide 
C) height of fall of the landslide 
D) strength of the earthquake causing the landslide 
E) volume of water under the landslide

Question 17

Tsunami generated by asteroid impact are common. ​

Accepted Answer

A) True 
 B)False

Question 18

Tsunami are caused by any large, rapid displacement of water.

Accepted Answer

A) True 
 B)False

Question 19

____ faults do NOT typically cause tsunami waves.

Accepted Answer

A) Normal 
B) Reverse 
C) Blind 
D) Thrust 
E) Strike-slip 
A) Normal 
B) Reverse 
C) Blind 
D) Thrust 
E) Strike-slip

Question 20

A major tsunami forms somewhere in the Pacific about once every ____ years.

Accepted Answer

A) 10 
B) 2 
C) 100 
D) 20 
E) 50 
A) 10 
B) 2 
C) 100 
D) 20 
E) 50

Atlantic coastal regions are at risk of a giant tsunami generated by landslides in the _______________ Islands.

Explain several conditions that will change the shape and force of a tsunami as it contacts the shoreline, and the effect that each condition will potentially have.

Someone fleeing a tsunami should be safe once they reach a point 100 m from shore and 10 m above water level.

Which type of event is a source of tsunami danger for the northeastern U.S.?

The largest displacement of water from an undersea earthquake would have an amplitude of about ____ m.

Discuss the process of tsunami creation from an earthquake in an offshore region of a subduction zone. What are the key factors affecting the strength of the tsunami?

Vegetation mitigates tsunami effects except when ____.

If you are alerted that a tsunami is approaching, your first reaction should be to ____.

As a tsunami enters shallow water, ____.

Tsunami detection networks are ____.

Tsunami wave motion drags on the bottom of shallow water, decreasing the wave height.

Tsunami from oceanic volcanoes are most likely to be caused by ____.

In a subduction zone, the descending oceanic plate may deform the continental plate, creating a(n) _______________. (two words)

In coastal subduction zones, the oceanic plate can rise suddenly, triggering a tsunami.

In the deep ocean, tsunami waves will travel at speeds approaching ____ km/hr.

The strength of a tsunami created by a landslide depends most heavily on the ____.

Tsunami generated by asteroid impact are common.

Tsunami are caused by any large, rapid displacement of water.

____ faults do NOT typically cause tsunami waves.

A major tsunami forms somewhere in the Pacific about once every ____ years.

Natural Hazards and Disasters

Plate Tectonics and Physical Hazards

Earthquakes and Their Causes

Earthquake Predictions Forecasts and Mitigation

Volcanoes Tectonic Environments and Eruptions

Volcanoes Hazards and Mitigation

Landslides and Other Downslope Movements

Sinkholes Land Subsidence and Swelling Soils

Weather Thunderstorms and Tornadoes

Climate Change Processes and History

Climate Change Impacts and Mitigation

Streams and Flood Processes

Floods and Human Interactions

Waves Beaches and Coastal Erosion

Hurricanes and nor Easters

Wildfires

Asteroid and Comet Impacts

Filters

Exam 5: Tsunami

Atlantic coastal regions are at risk of a giant tsunami generated by landslides in the _______________ Islands.

Explain several conditions that will change the shape and force of a tsunami as it contacts the shoreline, and the effect that each condition will potentially have.

Someone fleeing a tsunami should be safe once they reach a point 100 m from shore and 10 m above water level.

Which type of event is a source of tsunami danger for the northeastern U.S.?

The largest displacement of water from an undersea earthquake would have an amplitude of about ____ m.

Discuss the process of tsunami creation from an earthquake in an offshore region of a subduction zone. What are the key factors affecting the strength of the tsunami?

Vegetation mitigates tsunami effects except when ____.

If you are alerted that a tsunami is approaching, your first reaction should be to ____.

As a tsunami enters shallow water, ____.

Tsunami detection networks are ____.

Tsunami wave motion drags on the bottom of shallow water, decreasing the wave height.

Tsunami from oceanic volcanoes are most likely to be caused by ____.

In a subduction zone, the descending oceanic plate may deform the continental plate, creating a(n) _______________. (two words)

In coastal subduction zones, the oceanic plate can rise suddenly, triggering a tsunami.

In the deep ocean, tsunami waves will travel at speeds approaching ____ km/hr.

The strength of a tsunami created by a landslide depends most heavily on the ____.

Tsunami generated by asteroid impact are common. ​

Tsunami are caused by any large, rapid displacement of water.

____ faults do NOT typically cause tsunami waves.

A major tsunami forms somewhere in the Pacific about once every ____ years.

Natural Hazards and Disasters

Plate Tectonics and Physical Hazards

Earthquakes and Their Causes

Earthquake Predictions Forecasts and Mitigation

Volcanoes Tectonic Environments and Eruptions

Volcanoes Hazards and Mitigation

Landslides and Other Downslope Movements

Sinkholes Land Subsidence and Swelling Soils

Weather Thunderstorms and Tornadoes

Climate Change Processes and History

Climate Change Impacts and Mitigation

Streams and Flood Processes

Floods and Human Interactions

Waves Beaches and Coastal Erosion

Hurricanes and nor Easters

Wildfires

Asteroid and Comet Impacts

Filters

Tsunami generated by asteroid impact are common.