↑ Hanks, ThomasC. (05/1979). "Moment magnitude scale". Journal of Geophysical Research. 84 (B5): 2348–2350. doi:10.1029/JB084iB05p02348. Dicapai 2007-10-06. Parameter |coauthors= tidak diketahui diabaikan (guna |author=) (bantuan); Check date values in: |date= (bantuan)
↑ Boyle, Alan (May 12, 2008). "Quakes by the numbers". MSNBC. Dicapai 2008-05-12. That original scale has been tweaked through the decades, and nowadays calling it the "Richter scale" is an anachronism. The most common measure is known simply as the moment magnitude scale.
