What is the Richter scale? And why is it open-ended?
Comparison of the different earthquake magnitude scales, historical development, saturation, conversion into seismic energy.
A production of the Geophysical Institute (GPI) in collaboration with the Center for Technology-Enhanced Learning (ZML) at the Karlsruhe Institute of Technology (KIT).
German version: https://youtu.be/YKgkGbsMNl0