Because we do not have the same reading material as you do, we do not know the solution. In addition to that, you are posting the question in the wrong section. This is an economics question. Refer to your required text for the class for the solution.
Answer:
9
Step-by-step explanation:
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Hi, thank you for posting your question here at Brainly.
Simply substitute the value of the intensity to the variable i. Taking its logarithm to the base 10, the answer would be 7.8. Hence, 6 million ergs is equivalent to 7.8 based on the Richter scale.