Podcast
Questions and Answers
At which point will the earthquake cause the most damage?
At which point will the earthquake cause the most damage?
What would be the result if a fault suddenly moves in or near a body of water?
What would be the result if a fault suddenly moves in or near a body of water?
Which government agency in the Philippines is responsible for monitoring earthquakes?
Which government agency in the Philippines is responsible for monitoring earthquakes?
Which type of wave is the fastest traveling seismic wave and can travel through both liquids and solids?
Which type of wave is the fastest traveling seismic wave and can travel through both liquids and solids?
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What indicates the vibrations produced by an earthquake?
What indicates the vibrations produced by an earthquake?
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What type of seismic wave can only travel through the solid parts of Earth's interior?
What type of seismic wave can only travel through the solid parts of Earth's interior?
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How do landforms affect typhoons?
How do landforms affect typhoons?
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What gives a tropical cyclone its energy or power to sustain itself?
What gives a tropical cyclone its energy or power to sustain itself?
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Where are typhoons most likely to cause the greatest damage?
Where are typhoons most likely to cause the greatest damage?
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What can be a result of a very intense typhoon staying over an area for a long period of time?
What can be a result of a very intense typhoon staying over an area for a long period of time?
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What should people do when a province is placed under storm warning signal number 3 by PAG-ASA?
What should people do when a province is placed under storm warning signal number 3 by PAG-ASA?
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What emergency warning system does PAG-ASA use to inform the public about approaching typhoons?
What emergency warning system does PAG-ASA use to inform the public about approaching typhoons?
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Which heavenly body originates from the Oort cloud and Kuiper Belt?
Which heavenly body originates from the Oort cloud and Kuiper Belt?
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What is the annual light phenomenon characterized by many meteors appearing in a short time?
What is the annual light phenomenon characterized by many meteors appearing in a short time?
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How does a meteor shower typically occur?
How does a meteor shower typically occur?
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Which sequence correctly arranges fragments from space as they enter the atmosphere and land on Earth?
Which sequence correctly arranges fragments from space as they enter the atmosphere and land on Earth?
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Which of the following materials are comets primarily composed of?
Which of the following materials are comets primarily composed of?
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What is the expected next appearance year of Halley's Comet after 1986?
What is the expected next appearance year of Halley's Comet after 1986?
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In what specific body of water did Typhoon Sendong originate?
In what specific body of water did Typhoon Sendong originate?
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Where did Typhoon Sendong dissipate?
Where did Typhoon Sendong dissipate?
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Which latitude and longitude combination indicates a location within the Philippine Area of Responsibility (PAR)?
Which latitude and longitude combination indicates a location within the Philippine Area of Responsibility (PAR)?
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Where can you find the asteroid belt in the solar system?
Where can you find the asteroid belt in the solar system?
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What do astronomers hold true about asteroids?
What do astronomers hold true about asteroids?
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Which picture correctly identifies the three types of fault?
Which picture correctly identifies the three types of fault?
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Which picture shows the type of fault movement where the hanging wall moves downward with respect to the foot wall?
Which picture shows the type of fault movement where the hanging wall moves downward with respect to the foot wall?
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What kind of fault occurs when portions of the ground slide past each other?
What kind of fault occurs when portions of the ground slide past each other?
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How do seismologists describe the strength of an earthquake?
How do seismologists describe the strength of an earthquake?
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Which of the following statements is true about the earthquake's focus?
Which of the following statements is true about the earthquake's focus?
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Which term refers to the diagram of specific parts of a fault?
Which term refers to the diagram of specific parts of a fault?
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What characteristic of an earthquake is represented by a number from 1 to 9 on the Richter scale?
What characteristic of an earthquake is represented by a number from 1 to 9 on the Richter scale?
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Which statement accurately describes the earthquake's focus?
Which statement accurately describes the earthquake's focus?
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Which locations are likely to experience a magnitude 7.2 earthquake along the west valley fault?
Which locations are likely to experience a magnitude 7.2 earthquake along the west valley fault?
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What is the primary distinction between active and inactive faults?
What is the primary distinction between active and inactive faults?
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Which active fault is associated with the region mentioned?
Which active fault is associated with the region mentioned?
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How do long-period comets differ from short-period comets?
How do long-period comets differ from short-period comets?
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Which statement best defines a comet?
Which statement best defines a comet?
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What primarily distinguishes short-period comets from long-period comets?
What primarily distinguishes short-period comets from long-period comets?
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Study Notes
Earthquake
- Earthquake intensity measures damage at a location
- Earthquake magnitude measures the extent of an earthquake
- Epicenter is the point on the Earth's surface directly above the focus
- Focus is the point where an earthquake originates
- PHIVOLCS monitors earthquakes in the Philippines
- Warning signs of a tsunami include the sea receding from the shore
- Fastest seismic waves are P-waves, which travel through solids and liquids
- S-waves can only travel through solids
- Seismic waves are vibrations produced by an earthquake
- Body waves are the waves that travel through the interior of the Earth
- Surface waves can only travel on the surface
Tsunamis
- Tsunamis are caused by earthquakes near bodies of water
- These are the waves produced by an earthquake that occurs in or near an ocean.
- Tsunamis cause significant damage to coastal areas
- Warning signs of a tsunami can be seen on the seashore, such as the sea drawing away from the shore
Typhoons
- Typhoons are fueled by warm ocean water
- The energy of a typhoon comes from warm ocean water
- When a typhoon moves over land, they lose their energy
- Coastal areas are most vulnerable to typhoon damage
- Prolonged typhoons over land can lead to flash floods
- PAG-ASA uses Public Storm Warning Signals (PSWS) to warn the public
Meteor Showers and Comets
- Comets originate from the Oort cloud or Kuiper Belt
- Meteor showers occur when Earth passes through a comet's debris stream
- Comets are icy objects containing elements like sodium and argon
- Comets move in orbits around the sun
- Asteroids are composed of silicates and metals
- Comets and asteroids are different in their origin. Asteroids are found in the asteroid belt between Mars and Jupiter. Comets come from the Oort cloud and the Kuiper belt
- Meteors can be seen in the atmosphere, they are called meteoroids when still in space and meteorites when hitting the Earth
Faults
- Faults are breaks in the Earth's crust
- Earthquakes are caused by movement along faults
- Three types of faults are reverse, strike-slip, and normal faults
- A normal fault occurs when the hanging wall moves down with respect to the footwall
- The focus of an earthquake is where the seismic waves originate and spread out
- The Richter scale is used to measure the magnitude of an earthquake
Active and Inactive Faults
- Active faults have moved and caused earthquakes in the past and are expected to move again.
- Inactive faults have moved in the past but are not expected to move again
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Description
This quiz covers the essentials of earthquakes and tsunamis, including their definitions and characteristics. It explores the intensity and magnitude of earthquakes, as well as the warning signs of tsunamis. Test your knowledge of the key concepts that explain these natural disasters.
