Wikimedi'Òc

Earthquake severity.jpg - Webber

Earthquake Richter Scale.jpg - Webber

Ondas sísmicas s p.svg - Sigmanexus6~commonswiki

Richter.png - Rafaelgarcia

RichterFreqEnergyGraph-en.svg - Jkwchui

How-the-Richter-Magnitude-Scale-is-determined.jpg - Benjamin J. Burger

Richter magnitude scale (HY).svg - Haykaz Martiros

Gutenberg–Richter law in the 2016 Central Italy earthquake (magnitude).png - Cosmia Nebula