bo Oladipo: Attempt 1 Question 4 (1 point) For each magnitude unit, the ground m

Question

bo Oladipo: Attempt 1 Question 4 (1 point) For each magnitude unit, the ground motion amplitude of an earthquake goes up by a factor of 10. What is the difference in amplitude between a magnitude 3.2 and a magnitude 6.0 earthquake? (Answer with 1 decimal point) Your Answer Answer Save Question 5 (1 point) For each magnitude unit, the energy goes up by a factor of 32. What is the difference in energy between a magnitude 5.4 and a magnitude 9.0 earthquake? (Answer with one decimal place). Your Answer

Explanation / Answer

Question 4:

For the increase of 1 magnitude there would be approximately 10 times more intensity than the lesser magnitude. For example, magnitude 5 earth quake would be having an intensity of 10 times greater than to that of a magnitude 4 earth quake, magnitude 6 would have 10 times greater intensity than to that of magnitude 5 earth quake and so on. Therefore, to compare two earthquakes in terms of shaking intensity, higher magnitude has to be subtracted by the lower one and the result should raise 10 to that power.

Construction:

Magnitude 1 = 6.0

Magnitude 2 = 3.2

Then, 6.0-3.2 = 2.8,

10 to the power 2.8 (10^(2.8)) = 630.9.

Hence, the amplitude difference between Magnitude 1 and 2 as stated above is 630.9.

Question 5:

When it comes to energy release during an earthquake, the formula slightly varies like below,

Magnitude 1 = 9.0

Magnitude 2 = 5.4

Then, 9.0-5.4 = 3.6,

32^(3.6) = 262144.

Hence, the difference of energy between Magnitude 1 and Magnitude 2 would be 262144.

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