document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=768222>Question 768222</A>: <I><SPAN STYLE=\"word-break: break-all;\">  How much energy, Q, is released by an earthquake with a Richter rating, R, of 8.7? Use the function R = log[Q] - 4.4<BR>\n" );
document.write( "Energy in joules (E-notation, 1 decimal before the E): 		 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #468138 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=468138\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> R = log(Q) - 4.4<BR>\n" );
document.write( "R = 8.7<BR>\n" );
document.write( "8.7 = log(Q) - 4.4<BR>\n" );
document.write( "8.7 + 4.4 = log(Q)<BR>\n" );
document.write( "13.1 = log(Q)<BR>\n" );
document.write( "10^13.1 = Q<BR>\n" );
document.write( "Q =1.3 X 10^13 Joules<BR>\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );