Multiple Choice
Use the formula .
The San Francisco earthquake of 1906 measured 8.25 on the Richter scale, and the San Francisco earthquake of 1989 measured 7.1. How much more intense was the 1906 quake?
A) 0.3 times as severe.
B) 1.5 times as severe
C) 5.7 times as severe
D) 10.8 times as severe
E) 14.1 times as severe
Correct Answer:

Verified
Correct Answer:
Verified
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