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The Cascadia Subduction Zone is an active convergent boundary where:
- a)Juan de Fuca Plate is subducting beneath the North American Plate
- b)Cocos Plate is subducting beneath the Caribbean Plate
- c)Nazca Plate is subducting beneath the South American Plate
- d)Pacific Plate is subducting beneath the Eurasian Plate
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
The Cascadia Subduction Zone is an active convergent boundary where:a)...
Explanation:
Plate Tectonics:
- The Earth's lithosphere is divided into several large and small plates that float on the semi-fluid asthenosphere beneath them.
- These plates move relative to each other, leading to various geological phenomena such as earthquakes and volcanic activity.
Cascadia Subduction Zone:
- The Cascadia Subduction Zone is a 1,000-km long fault line where the Juan de Fuca Plate is subducting beneath the North American Plate.
- This subduction zone runs along the coasts of British Columbia, Washington, Oregon, and northern California.
- The interaction between these two plates creates significant geological hazards in the region, including earthquakes and tsunamis.
Convergent Boundary:
- A convergent boundary is a type of plate boundary where two tectonic plates move towards each other.
- In the case of the Cascadia Subduction Zone, the Juan de Fuca Plate is denser and therefore subducts beneath the less dense North American Plate.
Earthquake and Tsunami Risk:
- The subduction of the Juan de Fuca Plate beneath the North American Plate can lead to the accumulation of stress and eventual release in the form of earthquakes.
- The region is at risk of large magnitude earthquakes that can potentially trigger tsunamis along the coast.
Conclusion:
- The Cascadia Subduction Zone is an active convergent boundary where the Juan de Fuca Plate subducts beneath the North American Plate, leading to significant geological hazards in the region.
Plate Tectonics:
- The Earth's lithosphere is divided into several large and small plates that float on the semi-fluid asthenosphere beneath them.
- These plates move relative to each other, leading to various geological phenomena such as earthquakes and volcanic activity.
Cascadia Subduction Zone:
- The Cascadia Subduction Zone is a 1,000-km long fault line where the Juan de Fuca Plate is subducting beneath the North American Plate.
- This subduction zone runs along the coasts of British Columbia, Washington, Oregon, and northern California.
- The interaction between these two plates creates significant geological hazards in the region, including earthquakes and tsunamis.
Convergent Boundary:
- A convergent boundary is a type of plate boundary where two tectonic plates move towards each other.
- In the case of the Cascadia Subduction Zone, the Juan de Fuca Plate is denser and therefore subducts beneath the less dense North American Plate.
Earthquake and Tsunami Risk:
- The subduction of the Juan de Fuca Plate beneath the North American Plate can lead to the accumulation of stress and eventual release in the form of earthquakes.
- The region is at risk of large magnitude earthquakes that can potentially trigger tsunamis along the coast.
Conclusion:
- The Cascadia Subduction Zone is an active convergent boundary where the Juan de Fuca Plate subducts beneath the North American Plate, leading to significant geological hazards in the region.
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Community Answer
The Cascadia Subduction Zone is an active convergent boundary where:a)...
Cascadia Subduction Zone, one of Earth's top hazards, comes into sharper focus
About Cascadia Subduction Zone
- The Cascadia Subduction Zone (CSZ) is a major geological feature located off the west coast of North America, stretching from northern California to southern British Columbia.
- It is an active convergent boundary where the Juan de Fuca Plate is subducting beneath the North American Plate.
- This subduction process has significant implications for seismic activity in the region.
Earthquake and Tsunami Risks
- The CSZ is capable of producing massive earthquakes, including those of magnitude 9.0 or greater, which can generate tsunamis reaching heights of 100 feet or more.
- A similar fault off Japan triggered the devastating 2011 Fukushima nuclear disaster
Hence option a is the correct answer.
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The Cascadia Subduction Zone is an active convergent boundary where:a)Juan de Fuca Plate is subducting beneath the North American Plateb)Cocos Plate is subducting beneath the Caribbean Platec)Nazca Plate is subducting beneath the South American Plated)Pacific Plate is subducting beneath the Eurasian PlateCorrect answer is option 'A'. Can you explain this answer?
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