Let the earthquake energy of 1 1 be E 1, and the earthquake energy in 2008 is E2. Substituting R=9 and R=8 into the relation respectively, we can get lg E 1=24.9 and lg E2=23.4. The two expressions are subtracted to get LG E 1/E2. Then use a calculator to calculate e 1/E2 =101.5 (e1/E2 is the energy ratio of two earthquakes)-and e1/E2 is about 32.