- #1

gatita0225

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## Homework Statement

An earthquake with a magnitude of 5.4 is 39 times as intense as an aftershock that occurs 5 hours later. What is the magnitude of the aftershock.

## Homework Equations

m=log_10(i/i_0)

## The Attempt at a Solution

I know that I what to find the magnitude

m=log_10(39/i_0)

I am stuck because I do not know what # do I replace "/i_0' with..please help!?