is this power law? (remember: magnitude is a log scale)
January 1932: the origin of the Richter magnitude scale
Why scientists no longer use the Richter magnitude scale
here is energy by frequency from the
same source
(power=1.7~2)
West, G.B., Brown, J.H. & B.J.Enquist (1997) A general model for the origin of
allometric scaling laws in biology. Science 276:122-126. (PDF Reprint)
Allometric scaling in biology (commentary)
download 1st excel file for Zipf power-law distribution on word frequency
download 2nd excel file for Zipf power-law distribution on word frequency