Posted by alejandro on .
The 1933 earthquake in Japan registered 8.9 on the Richter scale.
a.The 1985 earthquake in Peru registered 7.7 on the Richter scale. How many more times intense was the earthquake in Japan? Round your answer to one decimal place.
b. What would the Richter scale reading be of an earthquake that is only 0.01 times as intense as the earthquake in Japan?

math30 
Anonymous,
6.9 and 0.01