Moment Magnitude Explained—What Happened to the Richter Scale?
Why the open web links it
Explains the shift from the Richter scale to the more accurate moment magnitude scale for measuring earthquakes.
Linked by 5 independent sites, 3 of them widely read in the 2026-10 crawl of the open web, including vt.edu, libretexts.org, explainthatstuff.com, earthscope.org, layers-of-learning.com.