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Questions and Answers
What forms in the sand when sheets are moved?
What forms in the sand when sheets are moved?
What occurs to the lines during movement along a fault?
What occurs to the lines during movement along a fault?
What is the term used for a break or fracture on the Earth’s surface?
What is the term used for a break or fracture on the Earth’s surface?
What is the primary objective of the 'Stick ‘n’ slip' activity?
What is the primary objective of the 'Stick ‘n’ slip' activity?
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What happens to the rubber band when it is pulled?
What happens to the rubber band when it is pulled?
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During the activity, what happens to the box attached to the rubber band?
During the activity, what happens to the box attached to the rubber band?
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What happens to the toy house during the experiment?
What happens to the toy house during the experiment?
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In the setup, which component represents the 'fault'?
In the setup, which component represents the 'fault'?
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What is a primary focus of the module on Earthquakes and Faults?
What is a primary focus of the module on Earthquakes and Faults?
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Which term is defined as the location directly above the earthquake's origin?
Which term is defined as the location directly above the earthquake's origin?
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What differentiates active faults from inactive faults?
What differentiates active faults from inactive faults?
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What aspect of earthquakes is highlighted by the comparison between magnitude and intensity?
What aspect of earthquakes is highlighted by the comparison between magnitude and intensity?
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What does the module aim to teach students about the Earth's interior?
What does the module aim to teach students about the Earth's interior?
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Which option correctly describes the focus of an earthquake?
Which option correctly describes the focus of an earthquake?
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Which of the following best describes intensity in relation to earthquakes?
Which of the following best describes intensity in relation to earthquakes?
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What is the significance of understanding faults in relation to earthquakes?
What is the significance of understanding faults in relation to earthquakes?
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What characterizes an active fault?
What characterizes an active fault?
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Which method do scientists NOT use to identify active faults?
Which method do scientists NOT use to identify active faults?
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What is the main reason for knowing the location of active and inactive faults?
What is the main reason for knowing the location of active and inactive faults?
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What does PHIVOLCS stand for?
What does PHIVOLCS stand for?
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Which of the following is NOT true about an inactive fault?
Which of the following is NOT true about an inactive fault?
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What can be an indicator of an active fault?
What can be an indicator of an active fault?
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Which statement accurately describes the relationship between faults and earthquakes?
Which statement accurately describes the relationship between faults and earthquakes?
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Which of the following is the best measure of the damage potential of an earthquake?
Which of the following is the best measure of the damage potential of an earthquake?
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What caused the strong ground motion associated with the North Bohol fault?
What caused the strong ground motion associated with the North Bohol fault?
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What is the focus or hypocenter of an earthquake?
What is the focus or hypocenter of an earthquake?
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Which statement accurately describes the epicenter of an earthquake?
Which statement accurately describes the epicenter of an earthquake?
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Why are earthquakes often named after the cities near their epicenters?
Why are earthquakes often named after the cities near their epicenters?
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What term describes a break in the Earth’s crust along which significant movement has occurred?
What term describes a break in the Earth’s crust along which significant movement has occurred?
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How do seismic waves travel from the focus of an earthquake?
How do seismic waves travel from the focus of an earthquake?
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Which organization is responsible for the monitoring and mitigation of earthquakes in the Philippines?
Which organization is responsible for the monitoring and mitigation of earthquakes in the Philippines?
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What is the main purpose of a seismograph?
What is the main purpose of a seismograph?
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What differentiates intensity from magnitude in the context of earthquakes?
What differentiates intensity from magnitude in the context of earthquakes?
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In the context of earthquakes, what does 'epicenter' refer to?
In the context of earthquakes, what does 'epicenter' refer to?
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Which of the following differentiates between magnitude and intensity of an earthquake?
Which of the following differentiates between magnitude and intensity of an earthquake?
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Where does seismic activity primarily begin in relation to an earthquake?
Where does seismic activity primarily begin in relation to an earthquake?
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What does 'focus' refer to in the context of an earthquake?
What does 'focus' refer to in the context of an earthquake?
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Which describes the concept of active faults?
Which describes the concept of active faults?
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What is the key difference between a tsunami and an earthquake?
What is the key difference between a tsunami and an earthquake?
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What magnitude is associated with the Cebu earthquake in 2013?
What magnitude is associated with the Cebu earthquake in 2013?
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What does the Richter scale primarily measure?
What does the Richter scale primarily measure?
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Which term refers to faults that have caused earthquakes in the past and may do so again?
Which term refers to faults that have caused earthquakes in the past and may do so again?
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What does the PEIS scale measure?
What does the PEIS scale measure?
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Which agency is responsible for monitoring earthquakes in the Philippines?
Which agency is responsible for monitoring earthquakes in the Philippines?
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The scale used to assess the effects and damages caused by earthquakes is known as what?
The scale used to assess the effects and damages caused by earthquakes is known as what?
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Which of the following terms describes faults that have not produced any seismic activity?
Which of the following terms describes faults that have not produced any seismic activity?
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Why is understanding active and inactive faults important in earthquake science?
Why is understanding active and inactive faults important in earthquake science?
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Study Notes
Earthquakes and Faults
- Earthquakes are a natural phenomenon, and are common in the Philippines.
- Earthquakes are caused by the movement of rocks beneath the Earth surface.
- Faults are breaks in the Earth's crust along which significant movement has happened.
- The focus of an earthquake is the point underground where rocks first start to move.
- The epicenter is the point on Earth's surface directly above the focus.
- Magnitude measures the strength of an earthquake, while intensity measures the effects of the earthquake.
- The Richter scale is a common standard for measuring earthquake magnitude.
- The PHIVOLCS Earthquake Intensity Scale is used to measure earthquake intensity in the Philippines.
- Active faults have moved in the past and are expected to move again.
- Inactive faults have not moved for a long period of time.
- Scientists use historical records and current observations to identify active faults.
- Earthquakes can damage buildings, infrastructure and other structures.
- There are two types of faults, active and inactive.
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Description
Test your understanding of earthquakes and faults, particularly their causes, measurements, and effects. This quiz covers concepts like the focus, epicenter, and different scales used to measure earthquakes, such as the Richter and PHIVOLCS intensity scales.
