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Author Question: How is the distance to the epicenter of an earthquake determined using a seismograph? a. How hard ... (Read 89 times)

SGallaher96

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on: Jul 15, 2018

How is the distance to the epicenter of an earthquake determined using a seismograph?
  a. How hard the seismograph needle swings back and forth is noted.
  b. Travel time is clocked and then compared to the reported time of the earthquake at the
  epicenter.
  c. The arrival times of surface waves are noted.
  d. The delay time between the P-wave and the slower S-wave is considered.
  e. You cannot do this with a single seismograph



Question 2

How much more energy does a magnitude 8 earthquake release than a magnitude 7 earthquake?
  a. 2 times more
  b. 10 times more
  c. 30 times more
  d. 900 times more
  e. 27,000 times more



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sylvia

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

D

Answer to Question 2

C


SGallaher96

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Reply #2 on: Jul 15, 2018
Thank you


sylvia

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Reply #3 on: Jul 15, 2018
No problemo


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