Question 1

h.How long was the break along that fault?

Accepted Answer

Approximately 1,200 km.

Question 2

Why are tsunami waves in the open ocean limited in height?

Accepted Answer

Fifteen meters is about the largest offset on a fault on the ocean floor,so that is also the largest wave height generated.

Question 3

How are tsunami waves in the Atlantic Ocean likely to be generated?

Accepted Answer

A)  by sudden rise of the Mid-Atlantic Ridge 
B)  by collapse of the flank of an oceanic island volcano 
C)  by a huge iceberg suddenly grounding on the coast of Newfoundland 
D)  a subduction-zone earthquake along the plate boundary just off eastern North America 
E)  a large-magnitude earthquake on a transform fault on the ocean floor 
A)  by sudden rise of the Mid-Atlantic Ridge 
B)  by collapse of the flank of an oceanic island volcano 
C)  by a huge iceberg suddenly grounding on the coast of Newfoundland 
D)  a subduction-zone earthquake along the plate boundary just off eastern North America 
E)  a large-magnitude earthquake on a transform fault on the ocean floor B

Question 4

Explain the two levels of the Pacific Tsunami Warning System and how they work.

Accepted Answer

Tsunami watch: issued when an earthquake

Question 5

Tsunami waves nearing the open coast:

Accepted Answer

A)  slow down because they don't want to hit the coast too fast. 
B)  speed up because they finally begin to feel bottom. 
C)  slow down because they drag more on the shallower bottom than in the deep ocean. 
D)  speed up because the shallower water forces the leading edge to squirt out ahead. 
E)  speed up because the wave launches forward as it breaks. 
A)  slow down because they don't want to hit the coast too fast. 
B)  speed up because they finally begin to feel bottom. 
C)  slow down because they drag more on the shallower bottom than in the deep ocean. 
D)  speed up because the shallower water forces the leading edge to squirt out ahead. 
E)  speed up because the wave launches forward as it breaks.

Question 6

Explain why swimming during a tsunami is not the best option to save your life.Discuss waves and effects of a tsunami on its surroundings.

Accepted Answer

In addition to drowning in an incoming w

Question 7

Explain how volcanoes can lead to tsunamis.

Accepted Answer

Volcanic processes displace large volume

Question 8

In the case of the Sumatra Tsunami in December 2004,what was the initial event that caused the tsunami? How did certain people's reactions save lives? What can education do to help further people's knowledge about this natural disaster?

Accepted Answer

The subduction boundary had been locked

Question 9

What secondary event (the one that killed most of the people)was caused by the initial event noted above (the general name for that type of event)?

Accepted Answer

The answer of What secondary event (the one that killed...

Question 10

Explain exactly how the initial event was related to the secondary event.

Accepted Answer

The earthquake caused the tsun

Question 11

What are two main causes of tsunami?

Accepted Answer

A)  volcano flank collapse and sudden degassing of the mantle from a mid-oceanic ridge 
B)  sudden changes in ocean-floor lithosphere velocity and major rockfall into the ocean 
C)  asteroid impact into the ocean and collapse of a mid-oceanic ridge 
D)  subduction-zone earthquakes and transform-fault earthquakes 
E)  subduction-zone earthquakes and landslide into the ocean 
A)  volcano flank collapse and sudden degassing of the mantle from a mid-oceanic ridge 
B)  sudden changes in ocean-floor lithosphere velocity and major rockfall into the ocean 
C)  asteroid impact into the ocean and collapse of a mid-oceanic ridge 
D)  subduction-zone earthquakes and transform-fault earthquakes 
E)  subduction-zone earthquakes and landslide into the ocean

Question 12

Why do ships in the open ocean not notice passage of a tsunami wave?

Accepted Answer

The time between wave crests i

Question 13

Although the Atlantic coast of North America experiences few large earthquakes,what specific other event could generate a large tsunami wave that could cause catastrophic damage there?

Accepted Answer

A)  a giant subduction-zone earthquake near the coast of Africa 
B)  a giant subduction-zone earthquake along the eastern edge of North America 
C)  a giant transform-fault earthquake on the Atlantic Ocean floor 
D)  flank collapse of a volcano in the Canary Islands 
E)  flank collapse of Mt. Vesuvius 
A)  a giant subduction-zone earthquake near the coast of Africa 
B)  a giant subduction-zone earthquake along the eastern edge of North America 
C)  a giant transform-fault earthquake on the Atlantic Ocean floor 
D)  flank collapse of a volcano in the Canary Islands 
E)  flank collapse of Mt. Vesuvius

Question 14

Discuss the well-known tsunami that are supposed to occur in the future and the effects of each.

Accepted Answer

The largest tsunami that are likely to i

Question 15

If you are at the beach and feel a large earthquake,what should you do,and when should you do it?

Accepted Answer

A)  Wait until the commotion dies down, and turn on the TV to find out where it happened. 
B)  Immediately call the nearest civil defense office to find out where it happened. 
C)  Carefully scan the horizon to see if a tsunami wave formed. If you see one, run inland. 
D)  Immediately run up slope as far as possible. 
E)  Immediately get into the nearest house for protection. 
A)  Wait until the commotion dies down, and turn on the TV to find out where it happened. 
B)  Immediately call the nearest civil defense office to find out where it happened. 
C)  Carefully scan the horizon to see if a tsunami wave formed. If you see one, run inland. 
D)  Immediately run up slope as far as possible. 
E)  Immediately get into the nearest house for protection.

Question 16

Decide which natural occurrence would create the most catastrophic tsunami and why.Describe the location that would be the most devastating.

Accepted Answer

The impact of a large asteroid into the

Question 17

Which of the following is LEAST effective in mitigating the impact of tsunami?

Accepted Answer

A)  Limit building in places potentially flooded by tsunami. 
B)  Design structures to resist erosion and scour. 
C)  Orient streets and buildings parallel to waves. 
D)  Plant trees with deep roots. 
E)  Build concrete walls in front of houses. 
A)  Limit building in places potentially flooded by tsunami. 
B)  Design structures to resist erosion and scour. 
C)  Orient streets and buildings parallel to waves. 
D)  Plant trees with deep roots. 
E)  Build concrete walls in front of houses.

Question 18

In December 2004,a pair of closely related natural disasters killed tens of thousands of people.

Accepted Answer

The answer of In December 2004,a pair of closely related...

Question 19

As it enters a bay,the height of a tsunami wave:

Accepted Answer

A)  rises because more water from each wave is forced into less space. 
B)  rises primarily because the bay narrows. 
C)  rises because of thermal expansion in the warm water of the bay. 
D)  drops because the wave must spread out and slow as it approaches the shore. 
E)  drops because as the wave breaks it rushes ahead as a fast-moving swash. 
A)  rises because more water from each wave is forced into less space. 
B)  rises primarily because the bay narrows. 
C)  rises because of thermal expansion in the warm water of the bay. 
D)  drops because the wave must spread out and slow as it approaches the shore. 
E)  drops because as the wave breaks it rushes ahead as a fast-moving swash.

Question 20

What was the nature of the boundary marked by that fault?

Accepted Answer

The answer of What was the nature of the boundary...

h.How long was the break along that fault?

Why are tsunami waves in the open ocean limited in height?

How are tsunami waves in the Atlantic Ocean likely to be generated?

Explain the two levels of the Pacific Tsunami Warning System and how they work.

Tsunami waves nearing the open coast:

Explain why swimming during a tsunami is not the best option to save your life.Discuss waves and effects of a tsunami on its surroundings.

Explain how volcanoes can lead to tsunamis.

In the case of the Sumatra Tsunami in December 2004,what was the initial event that caused the tsunami? How did certain people's reactions save lives? What can education do to help further people's knowledge about this natural disaster?

What secondary event (the one that killed most of the people)was caused by the initial event noted above (the general name for that type of event)?

Explain exactly how the initial event was related to the secondary event.

What are two main causes of tsunami?

Why do ships in the open ocean not notice passage of a tsunami wave?

Although the Atlantic coast of North America experiences few large earthquakes,what specific other event could generate a large tsunami wave that could cause catastrophic damage there?

Discuss the well-known tsunami that are supposed to occur in the future and the effects of each.

If you are at the beach and feel a large earthquake,what should you do,and when should you do it?

Decide which natural occurrence would create the most catastrophic tsunami and why.Describe the location that would be the most devastating.

Which of the following is LEAST effective in mitigating the impact of tsunami?

In December 2004,a pair of closely related natural disasters killed tens of thousands of people.

As it enters a bay,the height of a tsunami wave:

What was the nature of the boundary marked by that fault?

Natural Hazards and Disasters

Plate Tectonics and Physical Hazards

Earthquakes and Their Causes

Earthquake Prediction 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

Streams And Flood Processes

Floods And Human Interactions

Waves,Beaches,And Coastal Erosion

Hurricanes and Nor’easters

Wildfires

Impact of Asteroids and Comets

The Future: Where Do We Go From Here?

Filters

Exam 5: Tsunami

h.How long was the break along that fault?

Why are tsunami waves in the open ocean limited in height?

How are tsunami waves in the Atlantic Ocean likely to be generated?

Explain the two levels of the Pacific Tsunami Warning System and how they work.

Tsunami waves nearing the open coast:

Explain why swimming during a tsunami is not the best option to save your life.Discuss waves and effects of a tsunami on its surroundings.

Explain how volcanoes can lead to tsunamis.

In the case of the Sumatra Tsunami in December 2004,what was the initial event that caused the tsunami? How did certain people's reactions save lives? What can education do to help further people's knowledge about this natural disaster?

What secondary event (the one that killed most of the people)was caused by the initial event noted above (the general name for that type of event)?

Explain exactly how the initial event was related to the secondary event.

What are two main causes of tsunami?

Why do ships in the open ocean not notice passage of a tsunami wave?

Although the Atlantic coast of North America experiences few large earthquakes,what specific other event could generate a large tsunami wave that could cause catastrophic damage there?

Discuss the well-known tsunami that are supposed to occur in the future and the effects of each.

If you are at the beach and feel a large earthquake,what should you do,and when should you do it?

Decide which natural occurrence would create the most catastrophic tsunami and why.Describe the location that would be the most devastating.

Which of the following is LEAST effective in mitigating the impact of tsunami?

In December 2004,a pair of closely related natural disasters killed tens of thousands of people.

As it enters a bay,the height of a tsunami wave:

What was the nature of the boundary marked by that fault?

Natural Hazards and Disasters

Plate Tectonics and Physical Hazards

Earthquakes and Their Causes

Earthquake Prediction 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

Streams And Flood Processes

Floods And Human Interactions

Waves,Beaches,And Coastal Erosion

Hurricanes and Nor’easters

Wildfires

Impact of Asteroids and Comets

The Future: Where Do We Go From Here?

Filters