document.write( "Question 44034: Columbian Earthquake of 1906 At 8.6 on the richter scale, the Colombian earthquake of January 31, 1906, was one of the strongest earthquakes on record. Use the formula log(I)-log(Io) to write I as a mulitple of Io for this earthquake. \n" ); document.write( "
Algebra.Com's Answer #29040 by fractalier(6550)\"\" \"About 
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We have log(I) - log(Io) = 8.6
\n" ); document.write( "and then by the laws of logarithms we have
\n" ); document.write( "log (I/Io) = 8.6
\n" ); document.write( "I/Io = 10^8.6
\n" ); document.write( "I = (Io)(10^8.6) or about 400000000 * Io
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