Question

A 9.0 is how many times more powerful than a
4.0 on the Richter scale?

Answer 1

It increases 31.7 times between whole number

values.

Step-by-step explanation:

"That is, the wave amplitude in a level 6 earthquake is 10 times greater than in a level 5 earthquake, and the amplitude increases 100 times between a level 7 earthquake and a level 9 earthquake."