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What causes earthquakes to occur at fault lines?
What causes earthquakes to occur at fault lines?
- The rotation of the Earth's crust
- The movement of plates meeting at fault lines (correct)
- The collision of asteroids
- The pressure applied to the Earth's surface
How are earthquakes measured?
How are earthquakes measured?
- Using a seismograph that records ground-shaking activity (correct)
- Using a telescope to observe underground movements
- Using a thermometer to measure temperature changes
- Using radar to detect seismic waves
What is the purpose of a seismometer?
What is the purpose of a seismometer?
- To detect changes in atmospheric pressure
- To measure the speed of seismic waves
- To study the rotation of the Earth's core
- To measure ground-shaking activity caused by earthquakes (correct)
Why is seismic activity important for scientists?
Why is seismic activity important for scientists?
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How are earthquakes caused by the movement of plates?
How are earthquakes caused by the movement of plates?
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What is the main purpose of a seismometer?
What is the main purpose of a seismometer?
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Which type of seismic waves travel through the Earth's interior and not along its surface?
Which type of seismic waves travel through the Earth's interior and not along its surface?
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What is the major characteristic of S-waves (secondary waves)?
What is the major characteristic of S-waves (secondary waves)?
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What is the primary purpose of the Richter Scale?
What is the primary purpose of the Richter Scale?
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What makes the moment magnitude scale (MMO) a preferred way to measure earthquakes over the Richter scale?
What makes the moment magnitude scale (MMO) a preferred way to measure earthquakes over the Richter scale?
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