Ch 3: Earthquakes

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What primarily causes earthquakes?

Collapses in mines

Movements of tectonic plates at fault lines (correct)

Tsunamis

Volcanic eruptions

Which instrument measures and records the details of seismic waves?

Thermometer

Barometer

Hygrometer

Seismograph (correct)

What do Primary Waves (P-waves) do when they travel through the Earth's crust?

Roll the ground similarly to ocean waves

Squeeze or stretch the ground (correct)

Cause the most destruction

Move the ground up and down and sideways

Which type of seismic waves only move through solids and not liquids?

Secondary Waves (S-waves) Signup and view all the answers

Where is the epicenter of an earthquake located in relation to the focus?

Directly above it on the surface Signup and view all the answers

What is a tsunami primarily caused by?

Undersea disturbances such as earthquakes Signup and view all the answers

What does a seismogram depict?

The strength and duration of seismic waves Signup and view all the answers

What scale is used to measure the strength of earthquakes?

Richter scale Signup and view all the answers

Which category of earthquakes is capable of causing serious to catastrophic damage?

Major to Great earthquakes Signup and view all the answers

What are the immediate impacts of earthquakes?

Health and Safety Risks Signup and view all the answers

How do waves created by the displacement of water behave as they approach shallow coastal waters?

They slow down but grow in height Signup and view all the answers

What makes developing countries more vulnerable to earthquake devastation compared to developed countries?

High population densities in vulnerable areas Signup and view all the answers

What initiatives are included in preparedness efforts in developed countries?

All of the above Signup and view all the answers

Which range on the Richter scale characterizes earthquakes capable of causing minor damage?

0 to 4.9 Signup and view all the answers

What can cause devastating coastal flooding as waves approach shallow waters?

'Growing in height' effect of waves Signup and view all the answers

Why do developing countries often suffer greater devastation from earthquakes?

'Community Preparedness' lack Signup and view all the answers

What is the main cause of earthquakes?

Movement of tectonic plates Signup and view all the answers

Which seismic waves move the ground up and down and sideways, but only through solids?

Secondary Waves (S-waves) Signup and view all the answers

Where is the focus of an earthquake located?

Inside the Earth where the earthquake originates Signup and view all the answers

What instrument is used to measure and record the details of seismic waves?

Seismograph Signup and view all the answers

Which type of seismic waves are the slowest but most destructive?

Surface Waves Signup and view all the answers

What do Primary Waves (P-waves) do when they travel through the Earth's crust?

Stretch or squeeze the ground Signup and view all the answers

What do Seismograms depict?

Strength and duration of seismic waves Signup and view all the answers

What is the main factor that contributes to the devastating coastal flooding caused by waves approaching shallow coastal waters?

Slowing down Signup and view all the answers

What distinguishes earthquakes categorized as 'Major to Great' according to the Richter scale?

Capability to cause catastrophic damage Signup and view all the answers

Why do developing countries often face greater devastation from earthquakes compared to developed countries?

Less robust emergency response capabilities Signup and view all the answers

What immediate impact do earthquakes have on infrastructure, according to the text?

Disruption and destruction Signup and view all the answers

What is a key aspect of preparedness efforts in developed countries that helps mitigate earthquake damage?

Enhancing infrastructure resilience Signup and view all the answers

How are earthquake strengths measured according to the text?

Logarithmic scale Signup and view all the answers

What distinguishes 'Moderate to Strong' earthquakes on the Richter scale from 'Minor' earthquakes?

'Moderate to Strong' can cause damage to structures Signup and view all the answers

What aspect of waves created by water displacement contributes to their growth in height as they approach shallow coastal waters?

'Slowing down' effect Signup and view all the answers

What is a significant risk associated with earthquakes mentioned in the text?

'Health and Safety Risks' Signup and view all the answers

Why may developed countries suffer less devastation from earthquakes compared to developing countries?

Stringent building codes Signup and view all the answers

What is the main factor that contributes to the growth in height of waves approaching shallow coastal waters?

Increase in amplitude Signup and view all the answers

Why do developing countries often face greater devastation from earthquakes compared to developed countries?

Less stringent building codes Signup and view all the answers

Which characteristic distinguishes 'Major to Great' earthquakes on the Richter scale?

Capable of causing catastrophic damage Signup and view all the answers

Where is the epicenter of an earthquake located in relation to the focus?

At the same location as the focus Signup and view all the answers

What distinguishes 'Moderate to Strong' earthquakes on the Richter scale from 'Major to Great' earthquakes?

Energy released Signup and view all the answers

How are earthquake strengths measured according to the text?

Using the Richter scale Signup and view all the answers

'Primary Waves (P-waves)' primarily travel through which medium?

Solids Signup and view all the answers

What primarily causes tsunamis?

Displacement of water by underwater earthquakes Signup and view all the answers

'Resource Shortages' following an earthquake are mainly due to disruptions in which essential supplies?

'Water, gas, and electricity' Signup and view all the answers

What is the primary cause of a tsunami?

Earthquakes Signup and view all the answers

Which seismic waves are capable of moving the ground both up and down and sideways, but only through solids?

Secondary Waves (S-waves) Signup and view all the answers

Where is the epicenter of an earthquake located in relation to the focus?

Exactly on top of the focus Signup and view all the answers

Which type of seismic waves are the fastest and travel through the Earth's crust, squeezing or stretching the ground?

Primary Waves (P-waves) Signup and view all the answers

What do seismograms record?

Seismic wave details Signup and view all the answers

Which instrument is used to measure and record the details of seismic waves?

Seismograph Signup and view all the answers

What is the primary focus when understanding earthquakes, as mentioned in the text?

Studying the origins of earthquakes Signup and view all the answers

Which category of earthquakes is characterized by a range from 5 to 6.9 on the Richter scale?

Moderate to Strong earthquakes Signup and view all the answers

What immediate impact do earthquakes have on health and safety, according to the text?

Higher chances of disease outbreaks Signup and view all the answers

What distinguishes the impact of earthquakes on developing countries compared to developed countries, as stated in the text?

Higher population densities in developed countries Signup and view all the answers

What makes 'Major to Great' earthquakes on the Richter scale different from 'Moderate to Strong' earthquakes?

'Major to Great' earthquakes can cause catastrophic damage Signup and view all the answers

What is a key aspect of preparedness efforts in developed countries mentioned in the text?

Enhancing the resilience of critical infrastructure Signup and view all the answers

What do waves created by the displacement of water experience as they approach shallow coastal waters?

They slow down and grow in height Signup and view all the answers

What type of seismic waves are capable of moving the ground both up and down and sideways, but only through solids?

Secondary Waves (S-waves) Signup and view all the answers

Where is the epicenter of an earthquake located in relation to the focus?

Right above it Signup and view all the answers

What is the primary cause of tsunamis as mentioned in the text?

Undersea disturbances Signup and view all the answers

Which instrument measures and records the details of seismic waves?

Seismograph Signup and view all the answers

What do surface waves do that makes them the most destructive?

Roll the ground similarly to ocean waves Signup and view all the answers

What do seismograms depict?

Details of seismic waves Signup and view all the answers

Which type of earthquake is capable of causing serious to catastrophic damage according to the Richter scale?

'Major to Great' earthquakes Signup and view all the answers

Ch 3: Earthquakes

Podcast Beta

Questions and Answers

What primarily causes earthquakes?

Which instrument measures and records the details of seismic waves?

What do Primary Waves (P-waves) do when they travel through the Earth's crust?

Which type of seismic waves only move through solids and not liquids?

Where is the epicenter of an earthquake located in relation to the focus?

What is a tsunami primarily caused by?

What does a seismogram depict?

What scale is used to measure the strength of earthquakes?

Which category of earthquakes is capable of causing serious to catastrophic damage?

What are the immediate impacts of earthquakes?

How do waves created by the displacement of water behave as they approach shallow coastal waters?

What makes developing countries more vulnerable to earthquake devastation compared to developed countries?

What initiatives are included in preparedness efforts in developed countries?

Which range on the Richter scale characterizes earthquakes capable of causing minor damage?

What can cause devastating coastal flooding as waves approach shallow waters?

Why do developing countries often suffer greater devastation from earthquakes?

What is the main cause of earthquakes?

Which seismic waves move the ground up and down and sideways, but only through solids?

Where is the focus of an earthquake located?

What instrument is used to measure and record the details of seismic waves?

Which type of seismic waves are the slowest but most destructive?

What do Primary Waves (P-waves) do when they travel through the Earth's crust?

What do Seismograms depict?

What is the main factor that contributes to the devastating coastal flooding caused by waves approaching shallow coastal waters?

What distinguishes earthquakes categorized as 'Major to Great' according to the Richter scale?

Why do developing countries often face greater devastation from earthquakes compared to developed countries?

What immediate impact do earthquakes have on infrastructure, according to the text?

What is a key aspect of preparedness efforts in developed countries that helps mitigate earthquake damage?

How are earthquake strengths measured according to the text?

What distinguishes 'Moderate to Strong' earthquakes on the Richter scale from 'Minor' earthquakes?

What aspect of waves created by water displacement contributes to their growth in height as they approach shallow coastal waters?

What is a significant risk associated with earthquakes mentioned in the text?

Why may developed countries suffer less devastation from earthquakes compared to developing countries?

What is the main factor that contributes to the growth in height of waves approaching shallow coastal waters?

Why do developing countries often face greater devastation from earthquakes compared to developed countries?

Which characteristic distinguishes 'Major to Great' earthquakes on the Richter scale?

Where is the epicenter of an earthquake located in relation to the focus?

What distinguishes 'Moderate to Strong' earthquakes on the Richter scale from 'Major to Great' earthquakes?

How are earthquake strengths measured according to the text?

'Primary Waves (P-waves)' primarily travel through which medium?

What primarily causes tsunamis?

'Resource Shortages' following an earthquake are mainly due to disruptions in which essential supplies?

What is the primary cause of a tsunami?

Which seismic waves are capable of moving the ground both up and down and sideways, but only through solids?

Where is the epicenter of an earthquake located in relation to the focus?

Which type of seismic waves are the fastest and travel through the Earth's crust, squeezing or stretching the ground?

What do seismograms record?

Which instrument is used to measure and record the details of seismic waves?

What is the primary focus when understanding earthquakes, as mentioned in the text?

Which category of earthquakes is characterized by a range from 5 to 6.9 on the Richter scale?

What immediate impact do earthquakes have on health and safety, according to the text?

What distinguishes the impact of earthquakes on developing countries compared to developed countries, as stated in the text?

What makes 'Major to Great' earthquakes on the Richter scale different from 'Moderate to Strong' earthquakes?

What is a key aspect of preparedness efforts in developed countries mentioned in the text?

What do waves created by the displacement of water experience as they approach shallow coastal waters?

What type of seismic waves are capable of moving the ground both up and down and sideways, but only through solids?

Where is the epicenter of an earthquake located in relation to the focus?

What is the primary cause of tsunamis as mentioned in the text?

Which instrument measures and records the details of seismic waves?

What do surface waves do that makes them the most destructive?

What do seismograms depict?

Which type of earthquake is capable of causing serious to catastrophic damage according to the Richter scale?

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