On May 17, 2013, two earthquakes occurred near Shawville, Quebec, about 10 minutes apart, both of which were felt in Waterloo Region. The first was a magnitude 5.2 on the Richter scale, while the second was an aftershock measuring 4.1. What was the intensity of the second smaller quake as a percent (accurate to 1decimal place) of the first?

Applications and Investigations in Earth Science (9th Edition)
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ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
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Chapter1: The Study Of Minerals
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On May 17, 2013, two earthquakes occurred near Shawville, Quebec, about 10 minutes apart, both of which were felt in Waterloo Region. The first was a magnitude 5.2 on the Richter scale, while the second was an aftershock measuring 4.1. What was the intensity of the second smaller quake as a percent (accurate to 1decimal place) of the first? 

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