Earthquakes in Alaska and Chile: In 1964 an earthquake measuring 8.4 on the Richter scale occurred in Alaska.  a. How did the power of the New Madrid earthquake described  compare with that of the...

Earthquakes in Alaska and Chile: In 1964 an earthquake measuring 8.4 on the Richter scale occurred in Alaska.

 a. How did the power of the New Madrid earthquake described  compare with that of the 1964 Alaska earthquake?

 b. In 1960 an earthquake occurred in Chile that was 1.4 times as powerful as the Alaska quake. What was the Richter scale reading for the Chilean earthquake?