Question

Can you answer this question as soon as possible.

Answer 1

The intensity of the first earthquake is 6.31 times the second one

Explanation:

The given formulae is M=log(
`(I)/(S)`)

Here for both the earthquakes the value of S is same.

Let the Intensity of the first earthquake be I1 and the second be I2.

Given M1=7.5

M2=6.7

Now M1=log(
`(I1)/(S)`)------1

M2=log(
`(I2)/(S)`)-----2

Now subtract 1 and 2 we get

M1-M2=log(
`(I1)/(I2)`)

I1/I2=
`10^(M1-M2)`

I1=I2(
`10^(0.8)`

I1=I2*6.31