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Earthquakes > lesson 3 > Flashcards

lesson 3 Flashcards

1
Q

What is an earthquake?

A

A sudden shaking of the ground caused by the movement of tectonic plates.

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2
Q

What is a tsunami?

A

A series of ocean waves generated by large disturbances, such as underwater earthquakes.

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3
Q

True or False: Earthquakes can only occur on land.

A

False

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4
Q

Fill in the blank: The Richter scale measures the _____ of an earthquake.

A

magnitude

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5
Q

What is the primary effect of an earthquake on settlements?

A

Destruction of infrastructure and buildings.

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6
Q

Multiple Choice: What is one major consequence of a tsunami?

A

Widespread flooding

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7
Q

What does the term ‘aftershock’ refer to?

A

Smaller earthquakes that occur after the main shock of a larger earthquake.

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8
Q

True or False: Tsunamis can travel at speeds of up to 500 miles per hour in deep water.

A

True

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9
Q

Fill in the blank: The area most affected by an earthquake is called the _____ zone.

A

epicentral

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10
Q

What demographic groups are most vulnerable during earthquakes?

A

Children, the elderly, and people with disabilities.

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11
Q

Multiple Choice: Which of the following can be a long-term effect of a tsunami?

A

Displacement of communities

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12
Q

What is the term for the shaking intensity experienced during an earthquake?

A

Ground motion

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13
Q

True or False: Tsunamis can be predicted with high accuracy.

A

False

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14
Q

Fill in the blank: The _____ of a tsunami is the point where it originates.

A

epicenter

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15
Q

What kind of infrastructure is particularly vulnerable to earthquakes?

A

Older buildings and bridges.

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16
Q

Multiple Choice: Which of the following actions can help mitigate tsunami damage?

A

Building sea walls

17
Q

What is the term for a large earthquake that can generate a tsunami?

A

Megaquake

18
Q

True or False: Earthquakes can trigger landslides.

A

True

19
Q

Fill in the blank: Emergency _____ plans are crucial for communities at risk of tsunamis.

A

evacuation

20
Q

What role do government agencies play in earthquake preparedness?

A

They develop and implement emergency response plans.

21
Q

Multiple Choice: Which is a common psychological effect on survivors after a tsunami?

A

Post-traumatic stress disorder (PTSD)

22
Q

What is the primary cause of most tsunamis?

A

Underwater earthquakes.

23
Q

True or False: Tsunamis can occur in any ocean.

A

True

24
Q

Fill in the blank: The _____ of a tsunami can be affected by coastal geography.

A

height

25
Q

What is one way communities can prepare for earthquakes?

A

Conducting regular earthquake drills.

26
Q

Multiple Choice: Which of the following is NOT a method of tsunami warning?

A

Social media alerts

27
Q

What is the impact of earthquakes on economic stability?

A

They can cause significant financial loss and hinder recovery efforts.

Earthquakes (4 decks)

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