Question

the Richter magnitude of an earthquake of intensity i is given by R=log(i/i0) if an earthquake has an intensity twice that of another earthquake, how much larger is its Richter magnitude?

Answer 1

\[R=\log\left(\frac{i}{i_0}\right)\]
for i-2i_0
\[R=\log\left(\frac{2i_0}{i_0}\right)=\log (2)=0.301\]
the larger earth quake will be 0.3 ave on the ricter scale

Answer 2

ave*above

Answer 3

what about if i = 10 i_0