In an average year, worldwide there are 134 earthquakes of magnitude 6 on the Richter scale. If...

Question:

In an average year, worldwide there are 134 earthquakes of magnitude 6 on the Richter scale. If next year is predicted to be an exceptional year and the number of earthquakes of magnitude 6 is expected to increase by 46%, about how many earthquakes of magnitude 6 can be expected? (Round your answer to the nearest whole number.)

Richter Scale:

The Richter scale is a means to categorize the damage caused by an earthquake. It is also an attempt at giving some idea of the amount of energy that was released due to the Earth moving and shifting.

Answer and Explanation:

If you know that there will be 46% more, first, how much is 46% of 134:

{eq}134 * 0.46 = 61.64 {/eq}

Because you can't have part of an earthquake, this would round up to 62 more earthquakes the following year. This brings the total to:

{eq}134 + 62 = 196 {/eq}


Learn more about this topic:

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Destruction Caused by Earthquakes

from Earth Science 101: Earth Science

Chapter 21 / Lesson 6
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