Logarithm 2 : It is simply the exponent required to produce a given number. For a certain base 10, in this case 1 = 10, 2 = 10X10 = 100, 3=1000 and so on. (CEDIM)
James Daniell (compiler), Glossary of Earthquake Terms (shortened list of the most important terms), Earthquake-Report.com, Guam, USA 2011. http://earthquake-report.com/2011/02/15/glossary-o f-earthquake-terms-2/, (ND/ Erthq - Brit) {898}
