Measured on the Richter scale, the magnitude of an earthquake of intensity I is

Question

Measured on the Richter scale, the magnitude of an earthquake of intensity I is defined as R=log(I/I) where I is a minimium level of comparison.                                                                                                                            0          0

What is the Richter scale reading for the earthquake for which I= 80,000,000I ?

                                                                                                              0

The magnitude of the earthquake was ?

Round to one decimal place as needed.

Explanation / Answer

ritcheer scale readding for magnitude =7.9

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