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Author Question: Why are all intermediate- to deep-focus earthquakes generated at convergent plate boundaries? What ... (Read 34 times)

cherise1989

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on: Jul 15, 2018
Why are all intermediate- to deep-focus earthquakes generated at convergent plate boundaries? What will be an ideal response?

Question 2

What are the focal depth ranges for shallow-focus, intermediate-focus, and deep-focus earthquakes? What will be an ideal response?


frejo

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Reply #1 on: Jul 15, 2018
Answer to Question 1

The convergent plates generate compressional forces as a result of plate subduction. The down-going
plate undergoes phase changes as it descends into the mantle.



Answer to Question 2

Shallow-focus: less than 70 kilometers; intermediate-focus: between 70 and 300 kilometers; deepfocus:greater
than 300 kilometers



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