document.write( "Question 1192135: How many times more powerful was the earthquake in Alaska (with a magnitude of 9.2 on the Richter scale) than the San Francisco earthquake, in 1906, with a magnitude of 7.9 on the Richter scale? \n" ); document.write( "
Algebra.Com's Answer #824049 by Theo(13342)![]() ![]() You can put this solution on YOUR website! i believe the simplest explanation would be: \n" ); document.write( "an earthquake with a magnitude of 9.2 on the richter scale is 10^(9.2 - 7.9) more powerful than an earthquake with a magnitude of 7.9 on the richter scale. \n" ); document.write( "10^9.2 / 10^7.9 = 10^(9.2-7.9) = 10^1.3 = 19.95 times as powerful.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |