Seismic Activity and Plate Tectonics

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What is the main cause of earthquakes?

Tectonic plate movement (correct)

Seismic vibrations

Friction between the Earth's layers

Pressure from volcanic activity

How are fault lines related to earthquakes?

Fault lines are caused by seismic vibrations

Fault lines are not related to earthquakes

Fault lines are where earthquakes most commonly occur (correct)

Fault lines prevent earthquakes from happening

What instrument is used to measure earthquakes?

Magnetometer

Barometer

Thermometer

Seismograph (correct)

What is the recording made by a seismograph called?

Seismogram Signup and view all the answers

What is another name for a seismograph?

Seismometer Signup and view all the answers

Why do earthquakes occur deep underground?

Due to tectonic plate movement Signup and view all the answers

What does a seismometer measure?

Seismic vibrations Signup and view all the answers

Which type of seismic waves do the most shaking on the Earth's surface?

Surface waves Signup and view all the answers

What type of waves only travel through solid materials and move in an up-and-down motion similar to waves in the ocean?

S-waves Signup and view all the answers

Which scale uses the logarithm (base 10) of the amplitude of the largest wave created by the earthquake on the seismograph?

Richter Scale Signup and view all the answers

What is the purpose of a seismogram?

To gather information on earthquakes Signup and view all the answers

What type of waves travel through the Earth's interior and not along its surface?

P-waves Signup and view all the answers

What type of earthquake is considered to be a medium to a strong earthquake if measured at 6.1 on the Richter scale?

Medium earthquake Signup and view all the answers

Which scale is preferred over the Richter scale, especially for high-magnitude earthquakes, as it is based on seismic movement rather than wave amplitude?

Moment Magnitude Scale Signup and view all the answers

What is the term used to refer to the size and strength of an earthquake?

Magnitude Signup and view all the answers

What is the main cause of seismic activity?

The movement of the Earth's tectonic plates Signup and view all the answers

What is the primary function of a seismograph?

To measure ground-shaking activity caused by earthquakes Signup and view all the answers

What type of waves does a seismometer detect?

Seismic waves caused by earthquakes Signup and view all the answers

How are fault lines and earthquakes related?

Fault lines are where earthquakes most commonly occur Signup and view all the answers

What causes a disturbance to the Earth's surface, resulting in earthquakes?

The movement of tectonic plates Signup and view all the answers

How are earthquakes measured?

Using a seismograph or seismometer Signup and view all the answers

What is the purpose of studying seismic activity?

To understand earthquake patterns and potential risks Signup and view all the answers

What is the main difference between P-waves and S-waves?

P-waves move in an up-and-down motion, while S-waves move longitudinally. Signup and view all the answers

Which type of seismic waves causes the most damage on the Earth's surface?

Rayleigh waves Signup and view all the answers

What does the Richter Scale measure?

Earthquake magnitude Signup and view all the answers

Why is the moment magnitude scale preferred over the Richter scale for high-magnitude earthquakes?

It uses seismic movement rather than wave amplitude. Signup and view all the answers

What are seismograms used for?

Determining earthquake location and strength Signup and view all the answers

Which type of seismic waves travel through the Earth's interior and not along its surface?

P-waves Signup and view all the answers

What is the characteristic motion of love waves on the Earth's surface?

Snake-like motion Signup and view all the answers

What type of seismic waves move along the Earth's surface and cause the most damage during an earthquake?

Rayleigh waves Signup and view all the answers

Which scale measures earthquakes using the logarithm (base 10) of the amplitude of the largest wave created by the earthquake on the seismograph?

Richter Scale Signup and view all the answers

What is the purpose of the moment magnitude scale (MMO) in measuring earthquakes?

It measures seismic movement rather than wave amplitude Signup and view all the answers

Which type of seismic waves travels through the Earth's interior and not along its surface?

P-waves Signup and view all the answers

What is the characteristic motion of love waves on the Earth's surface?

Horizontal motion Signup and view all the answers

How does the Richter Scale categorize earthquakes with respect to magnitude?

Based on wave amplitude Signup and view all the answers

Which scale ranges from 1-10 where a value of 1 represents a weak earthquake and a 10 represents an extremely strong earthquake?

Richter Scale Signup and view all the answers

What is the main difference between P-waves and S-waves?

Direction of movement Signup and view all the answers

What instrument records ground-shaking activity caused by earthquakes on the Earth's surface?

Seismometer Signup and view all the answers

What causes a disturbance to the Earth's surface, resulting in earthquakes?

Tectonic plate movement Signup and view all the answers

What is the primary function of a seismometer?

Detect underground vibrations Signup and view all the answers

Which type of seismic waves only travel through solid materials and move in an up-and-down motion similar to waves in the ocean?

Surface waves Signup and view all the answers

Why is the moment magnitude scale preferred over the Richter scale for high-magnitude earthquakes?

It provides a more accurate measure of earthquake size Signup and view all the answers

What are seismic waves that travel through the Earth's interior and not along its surface called?

P-waves Signup and view all the answers

What is the purpose of studying seismic activity?

Determining earthquake patterns and trends Signup and view all the answers

Seismic Activity and Plate Tectonics

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Questions and Answers

What is the main cause of earthquakes?

How are fault lines related to earthquakes?

What instrument is used to measure earthquakes?

What is the recording made by a seismograph called?

What is another name for a seismograph?

Why do earthquakes occur deep underground?

What does a seismometer measure?

Which type of seismic waves do the most shaking on the Earth's surface?

What type of waves only travel through solid materials and move in an up-and-down motion similar to waves in the ocean?

Which scale uses the logarithm (base 10) of the amplitude of the largest wave created by the earthquake on the seismograph?

What is the purpose of a seismogram?

What type of waves travel through the Earth's interior and not along its surface?

What type of earthquake is considered to be a medium to a strong earthquake if measured at 6.1 on the Richter scale?

Which scale is preferred over the Richter scale, especially for high-magnitude earthquakes, as it is based on seismic movement rather than wave amplitude?

What is the term used to refer to the size and strength of an earthquake?

What is the main cause of seismic activity?

What is the primary function of a seismograph?

What type of waves does a seismometer detect?

How are fault lines and earthquakes related?

What causes a disturbance to the Earth's surface, resulting in earthquakes?

How are earthquakes measured?

What is the purpose of studying seismic activity?

What is the main difference between P-waves and S-waves?

Which type of seismic waves causes the most damage on the Earth's surface?

What does the Richter Scale measure?

Why is the moment magnitude scale preferred over the Richter scale for high-magnitude earthquakes?

What are seismograms used for?

Which type of seismic waves travel through the Earth's interior and not along its surface?

What is the characteristic motion of love waves on the Earth's surface?

What type of seismic waves move along the Earth's surface and cause the most damage during an earthquake?

Which scale measures earthquakes using the logarithm (base 10) of the amplitude of the largest wave created by the earthquake on the seismograph?

What is the purpose of the moment magnitude scale (MMO) in measuring earthquakes?

Which type of seismic waves travels through the Earth's interior and not along its surface?

What is the characteristic motion of love waves on the Earth's surface?

How does the Richter Scale categorize earthquakes with respect to magnitude?

Which scale ranges from 1-10 where a value of 1 represents a weak earthquake and a 10 represents an extremely strong earthquake?

What is the main difference between P-waves and S-waves?

What instrument records ground-shaking activity caused by earthquakes on the Earth's surface?

What causes a disturbance to the Earth's surface, resulting in earthquakes?

What is the primary function of a seismometer?

Which type of seismic waves only travel through solid materials and move in an up-and-down motion similar to waves in the ocean?

Why is the moment magnitude scale preferred over the Richter scale for high-magnitude earthquakes?

What are seismic waves that travel through the Earth's interior and not along its surface called?

What is the purpose of studying seismic activity?

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