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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
MAGNITUDE OF EARTHQUAKES On the Richter scale, the magnitude R of an earthquake is given by the formula
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where I is the intensity of the earthquake being measured and I0Â is the standard reference intensity.
a. Express the intensity I of an earthquake of magnitude R = 5 in terms of the standard intensity I0.
b. Express the intensity I of an earthquake of magnitude R = 8 in terms of the standard intensity I0. How many times greater is the intensity of an earthquake of magnitude 8 than one of magnitude 5?
c. In modern times, the greatest loss of life attributable to an earthquake occurred in eastern China in 1976. Known as the Tangshan earthquake, it registered 8.2 on the Richter scale. How does the intensity of this earthquake compare with the intensity of an earthquake of magnitude R = 5?
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