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Tsunami Quiz 7 (10 MCQs)

This set of multiple-choice questions evaluates understanding of tsunami causes, including seismic activity, underwater earthquakes, and volcanic eruptions. It covers the formation of large ocean waves, ocean displacement, and the destructive force of tsunamis on coastal areas. The questions test knowledge of natural hazards, oceanography basics, and the secondary hazards associated with tsunamis.

Quiz Instructions

Select an option to see the correct answer instantly.

1. A very big wave of water that can destroy towns near the ocean.

Correct Answer: Correct answer is: (A) Tsunami.

Exam Relevance: AP Environmental Science, GCE A-Level Geography, GRE Subject Test in Geology

Difficulty: Easy

Concept notes: A tsunami is a series of large ocean waves caused by underwater disturbances such as earthquakes, landslides, or volcanic eruptions. These waves can be extremely destructive when they reach coastal areas, often leading to significant damage and loss of life.

Common Mistakes: A common misunderstanding is that tsunamis are the same as tidal waves. Tidal waves are caused by the gravitational pull of the moon and sun, while tsunamis are caused by underwater disturbances.

Explanations: A tsunami is a very big wave of water that can cause significant destruction when it reaches coastal towns. This matches the description given in the question.

Option Analysis:

Option A: Tsunami is the correct term for a large ocean wave that can cause destruction.
Option B: Evacuate means to move people away from a dangerous area, not a type of wave.
Option C: Avalanche refers to a large mass of snow and ice sliding down a mountain, not a water wave.
Option D: Tornado is a violent rotating column of air extending from a thunderstorm to the ground, not a water wave.

2. What is a large ocean wave that results from an underwater earthquake?

Correct Answer: Correct answer is: (D) Tsunami.

Exam Relevance: AP Environmental Science, GCE A-Level Geography, USGS Earthquake Exams

Difficulty: Easy

Concept notes: A tsunami is a large ocean wave that results from an underwater earthquake.

Common Mistakes: A common misunderstanding is that a tsunami is caused by wind or weather conditions, but it is actually caused by seismic activity.

Explanations: A tsunami is a series of large ocean waves caused by a sudden displacement of water, often due to an underwater earthquake. The term "tsunami" specifically refers to these large waves generated by seismic activity, making it the correct answer.

Option Analysis:

Option A: An aftershock is a smaller earthquake that follows a larger earthquake in the same area. It is not a large ocean wave.
Option B: Liquefaction is a process where soil becomes unstable and behaves like a liquid during an earthquake. It is not a large ocean wave.
Option C: A seismic gap is a section of a fault that has not had an earthquake in a long time and is expected to have one in the future. It is not a large ocean wave.
Option D: A tsunami is a large ocean wave that results from an underwater earthquake, making it the correct answer.

3. Earthquakes happening under the sea may trigger a secondary hazard called .....

Correct Answer: Correct answer is: (A) Tsunami.

Exam Relevance: AP Environmental Science, GATE, GRE, MCAT

Difficulty: Easy

Concept notes: Earthquakes occurring under the sea can generate a series of powerful waves called a tsunami.

Common Mistakes: A common misunderstanding is that other natural disasters like tornadoes or wildfires can be directly triggered by underwater earthquakes.

Explanations: Underwater earthquakes can cause a sudden displacement of water, leading to the formation of a tsunami. This phenomenon involves a series of large waves that can travel across the ocean and cause significant damage when they reach the shore.

Option Analysis:

Option A: Tsunami is the correct answer as it is the secondary hazard triggered by underwater earthquakes.
Option B: Tornadoes are not typically triggered by underwater earthquakes.
Option C: Avian influenza is a disease and not a natural disaster triggered by earthquakes.
Option D: Wildfires are not directly caused by underwater earthquakes.

4. Destructive far-reaching ocean wave created by underwater earthquakes

Correct Answer: Correct answer is: (D) Tsunami.

Exam Relevance: AP Environmental Science, GCE A-Level Geography, MCAT

Difficulty: Easy

Concept notes: A tsunami is a series of large ocean waves caused by underwater disturbances, such as earthquakes, landslides, or volcanic eruptions.

Common Mistakes: A common misunderstanding is that tsunamis are caused by strong winds or storms, which is incorrect. Tsunamis are primarily caused by underwater disturbances.

Explanations: Tsunamis are large ocean waves that are created by underwater disturbances, such as earthquakes. They can be highly destructive and far-reaching, affecting coastal areas over vast distances. The term "tsunami" specifically refers to these waves caused by underwater events, making it the correct answer.

Option Analysis:

Option A: A typhoon is a tropical cyclone that forms over the western Pacific Ocean. It is not related to underwater earthquakes.
Option B: A storm surge is an abnormal rise in sea level accompanying a storm, primarily caused by strong winds. It is not caused by underwater earthquakes.
Option C: A flood is an overflow of water that submerges land. It is not specifically related to underwater earthquakes.
Option D: A tsunami is a series of large ocean waves caused by underwater disturbances, such as earthquakes. This matches the description in the question.

5. What is a large ocean wave that results from an underwater earthquake, landslide, or volcanic eruption?

Correct Answer: Correct answer is: (D) Tsunami.

Exam Relevance: AP Environmental Science, GCE A-Level Geography, USGS Earth Science Exams

Difficulty: Easy

Concept notes: A tsunami is a large ocean wave that results from an underwater earthquake, landslide, or volcanic eruption.

Common Mistakes: A common misunderstanding is that a tsunami is caused by wind or weather conditions, which is incorrect. Tsunamis are primarily caused by geological events.

Explanations: A tsunami is a series of large ocean waves caused by a sudden displacement of water, typically due to an underwater earthquake, landslide, or volcanic eruption. These waves can travel at high speeds across the ocean and cause significant damage when they reach the shore.

Option Analysis:

Option A: An aftershock is a smaller earthquake that follows a larger earthquake in the same area. It is not a large ocean wave.
Option B: Liquefaction is a process where soil becomes unstable and behaves like a liquid during an earthquake. It is not a large ocean wave.
Option C: A seismic gap is a section of a fault that has not experienced an earthquake in a long time and is expected to produce one in the future. It is not a large ocean wave.
Option D: A tsunami is a large ocean wave that results from an underwater earthquake, landslide, or volcanic eruption.

6. A ..... is a large wave produced by a/an ..... deep in the ocean.

Correct Answer: Correct answer is: (C) Tsunami, earthquake.

Exam Relevance: AP Environmental Science, GCE A-Level Geography, USGS Earth Science Exams

Difficulty: Easy

Concept notes: A tsunami is a large wave produced by an earthquake deep in the ocean.

Common Mistakes: A common misunderstanding is that a tsunami is caused by a canyon or other geological features, rather than an earthquake.

Explanations: A tsunami is a series of large waves generated by a sudden displacement of water, often caused by an earthquake occurring beneath the ocean. The earthquake's seismic activity can cause the ocean floor to shift, displacing a large volume of water and creating a tsunami.

Option Analysis:

Option A: Incorrect because an earthquake is not a wave, and a tsunami is not caused by an earthquake in reverse order.
Option B: Incorrect because a canyon does not cause a tsunami.
Option C: Correct because a tsunami is indeed a large wave produced by an earthquake deep in the ocean.
Option D: Incorrect because a canyon is not related to the cause of a tsunami.

7. A powerful wave caused by movement of ocean water after an earthquake, landslide or a volcanic eruption

Correct Answer: Correct answer is: (B) Tsunami.

Exam Relevance: AP Environmental Science, AP Physics, GATE, GRE

Difficulty: Easy

Concept notes: A tsunami is a series of powerful waves caused by the displacement of a large volume of water, typically due to an earthquake, landslide, or volcanic eruption.

Common Mistakes: A common misunderstanding is that a tidal wave is the same as a tsunami. However, tidal waves are caused by tidal forces, not by seismic activity.

Explanations: A tsunami is a powerful wave caused by the movement of ocean water after an earthquake, landslide, or volcanic eruption. This matches the description given in the question. Tsunamis are distinct from tidal waves, which are caused by the gravitational forces of the moon and sun, and from regular ocean waves, which are caused by wind.

Option Analysis:

Option A: Tidal wave is incorrect because it is caused by tidal forces, not seismic activity.
Option B: Tsunami is the correct term for a powerful wave caused by the movement of ocean water after an earthquake, landslide, or volcanic eruption.
Option C: Ocean wave is incorrect because it is caused by wind, not seismic activity.
Option D: Earthquake wave is incorrect because it refers to seismic waves, not water waves.

8. Which natural hazard is caused from an underwater earthquake?

Correct Answer: Correct answer is: (D) Tsunami.

Exam Relevance: AP Environmental Science, GCE A-Level Geography, USGS Earth Science Exams

Difficulty: Easy

Concept notes: A tsunami is a series of ocean waves caused by a sudden displacement of water, often due to an underwater earthquake.

Common Mistakes: A common misunderstanding is that tsunamis are caused by strong winds or storms, which is incorrect. Tsunamis are primarily caused by underwater disturbances such as earthquakes, landslides, or volcanic eruptions.

Explanations: An underwater earthquake can cause a sudden displacement of water, leading to the formation of a tsunami. The earthquake's seismic waves travel through the ocean, causing large waves to form and propagate across the water.

Option Analysis:

Option A: A waterspout is a tornado-like column of rotating air and water that forms over water, not caused by an earthquake.
Option B: Mass wasting refers to the movement of rock and soil down a slope due to gravity, not caused by an earthquake.
Option C: A volcanic eruption is caused by the release of magma, ash, and gases from a volcano, not an underwater earthquake.
Option D: A tsunami is caused by an underwater earthquake, which displaces water and creates large waves.

9. An extremely big wave

Correct Answer: Correct answer is: (A) Tsunami.

Exam Relevance: AP Environmental Science, GCE A-Level Geography, USGS Earth Science Exams

Difficulty: Easy

Concept notes: A tsunami is an extremely big wave caused by underwater disturbances such as earthquakes, landslides, or volcanic eruptions.

Common Mistakes: A common misunderstanding is that a tsunami is the same as a tidal wave, but a tsunami is caused by different mechanisms.

Explanations: A tsunami is an extremely large wave that can cause significant damage when it reaches the shore. It is caused by underwater disturbances such as earthquakes, landslides, or volcanic eruptions, which displace a large volume of water. This displacement creates a series of waves that can travel across entire ocean basins with minimal energy loss, resulting in extremely large waves when they reach the shore.

Option Analysis:

Option A: Tsunami is the correct answer as it refers to an extremely big wave caused by underwater disturbances.
Option B: A hurricane is a large storm system with strong winds and heavy rainfall, but it does not specifically refer to an extremely big wave.
Option C: A storm is a weather disturbance with strong winds and precipitation, but it does not specifically refer to an extremely big wave.
Option D: A flood is an overflow of water that submerges land, but it does not specifically refer to an extremely big wave.

10. A giant wave caused by movement of the ocean floor

Correct Answer: Correct answer is: (C) Tsunami.

Exam Relevance: AP Environmental Science, AP Physics, GRE, MCAT

Difficulty: Moderate

Concept notes: A tsunami is a series of large ocean waves caused by the displacement of a large volume of water, often due to an earthquake or underwater landslide.

Common Mistakes: A common misunderstanding is that a tsunami is the same as a tidal wave. However, a tidal wave is caused by tidal forces, whereas a tsunami is caused by seismic activity or underwater landslides.

Explanations: A tsunami is a giant wave caused by the movement of the ocean floor, typically due to an earthquake or underwater landslide. This movement displaces a large volume of water, leading to the formation of a series of large waves that can travel across the ocean at high speeds.

Option Analysis:

Option A: An earthquake is the shaking of the Earth's surface caused by the movement of tectonic plates, but it does not directly describe a giant wave in the ocean.
Option B: A flood is an overflow of water that submerges land, but it does not specifically describe a giant wave caused by ocean floor movement.
Option C: A tsunami is the correct term for a giant wave caused by the movement of the ocean floor, often due to an earthquake or underwater landslide.
Option D: A tidal wave is a term often used incorrectly to describe a tsunami, but it actually refers to waves caused by tidal forces, not seismic activity.

Frequently Asked Questions

What is a tsunami?

A tsunami is a series of large ocean waves caused by underwater disturbances such as earthquakes, volcanic eruptions, or landslides.

How do tsunamis cause destruction?

Tsunamis cause destruction through the force of their waves, which can flood coastal areas, destroy buildings, and displace large amounts of water and debris.

What triggers a tsunami?

Tsunamis are typically triggered by seismic activity, such as underwater earthquakes, which cause sudden movements of the ocean floor and displacement of water.

What are secondary hazards associated with tsunamis?

Secondary hazards of tsunamis include flooding, landslides, and contamination of water supplies, which can lead to further damage and health risks.

How can we predict tsunamis?

Tsunamis can be predicted by monitoring seismic activity and oceanic waves, using early warning systems to detect and alert populations in affected areas.

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