Oh, and in case you're wondering:
The Richter scale is defined using the logarithm base 10 as:
2 E
R = ——— log ———
3 Eo
Where, Eo = 104.8 Joules is the energy released by a small reference earthquake. The energy, E can be obtained directly from the Gutenberg-Richter magnitude-energy relation, here expressed in units of Joules:
log E = 1.5×R + 4.8 or equivalently:
E = 101.5×R + 4.8
The Richter scale is defined using the logarithm base 10 as:
2 E
R = ——— log ———
3 Eo
Where, Eo = 104.8 Joules is the energy released by a small reference earthquake. The energy, E can be obtained directly from the Gutenberg-Richter magnitude-energy relation, here expressed in units of Joules:
log E = 1.5×R + 4.8 or equivalently:
E = 101.5×R + 4.8