Understanding Earthquakes and Seismology

What is the primary cause of an earthquake?

• Volcanic eruption

• Tectonic plate movement

• Heavy rainfall

• Solar flares

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DOK Level 1: Recall

Which instrument is used to record the waves produced by an earthquake?

• Barometer

• Thermometer

• Seismograph

• Anemometer

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What does a seismogram display?

• Temperature changes

• Wind speed

• Earthquake wave patterns

• Ocean currents

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Which type of wave arrives first at a seismograph station during an earthquake?

• Surface wave

• P wave

• S wave

• Love wave

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

• P waves travel slower than S waves

• P waves can travel through liquids, S waves cannot

• S waves are longitudinal, P waves are transverse

• S waves are faster than P waves

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DOK Level 2: Skill/Concept

How is the magnitude of an earthquake measured?

• Richter scale

• Beaufort scale

• Celsius scale

• Decibel scale

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What does the term "moment magnitude" refer to in the context of earthquakes?

• The time duration of the earthquake

• The energy released by an earthquake

• The speed of the earthquake waves

• The distance from the epicenter

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DOK Level 2: Skill/Concept

Which of the following best describes a seismogram?

• A device that measures wind speed

• A graph that records the motion of the ground

• A chart that predicts weather patterns

• A map showing tectonic plate boundaries

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DOK Level 2: Skill/Concept

What is the primary purpose of a seismograph?

• To predict future earthquakes

• To measure the intensity of sunlight

• To record the motion of the ground during an earthquake

• To track ocean tides

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DOK Level 1: Recall

Which of the following statements is true about S waves?

• They are the fastest seismic waves

• They can travel through both solids and liquids

• They cause the most damage during an earthquake

• They are slower than P waves and can only travel through solids

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DOK Level 2: Skill/Concept