Question

Many of the strongest earthquakes in the world take place off the coast of Alaska in the Andreanof Islands or in Prince William Sound. In 1957, a 9.1 magnitude earthquake hit this area. What was the

intensity of that earthquake? (Round your answer to two decimal places.)
cm

Answer 1

1,258,925,411.79cm

Explanation:

earth quake is measured with the Richter Scale,

R (Magnitue) = log (I / I°)

where I° is the base intensity to the Richter Scale and will be taken as 1

9.1 = log I

10^9.1 = I

thus,

intensity I = 1,258,925,411.79 cm