write this formula in a simpler form
earthquakes are recorded on a seismograph. the magnitude of an earthquake on a richter scale is given by log(base 10) (k*amplitude of the surface wave) where k is a constant
two earthquakes produse surface waves in ratio 3:1 how do their magnitudes on the richter scale differ?
when y = 0.0002,
= 10*log(10) (25000000*p^2)
= 10*log(10) (5000p)^2
= 20*log(10) (5000p)