en.wikipedia.org/wiki/Richter_magnitude_scale

The Richter magnitude scale assigns a magnitude number to quantify the size of
an earthquake. The **Richter scale**, developed in the 1930s, is a base-10 ...

earthquake.usgs.gov/learn/topics/measure.php

The **Richter Scale** is not commonly used anymore, except for small earthquakes
recorded locally, for which ML and Mblg are the only magnitudes that can be ...

earthquake.usgs.gov/learn/glossary/?term=Richter%20scale

**Richter scale**. The Richter magnitude scale was developed in 1935 by Charles F.
Richter of the California Institute of Technology as a mathematical device to ...

science.howstuffworks.com/nature/natural-disasters/earthquake6.htm

Whenever a major earthquake is in the news, you'll probably hear about its
**Richter scale** rating. You might also hear about its Mercalli Scale rating, though
this ...

www.geo.mtu.edu/UPSeis/intensity.html

There are a number of ways to measure the magnitude of an earthquake. The
first widely-used method, the **Richter scale**, was developed by Charles F. Richter
...

www.sms-tsunami-warning.com/pages/richter-scale

The Richter Magnitude Scale: Development, Details, Richter Magnitudes,
Examples, Magnitude Formula, How it works, **Richter Scale** videos.

www.khanacademy.org/math/algebra2/exponential-and-logarithmic-functions/logarithmic-scale/v/richter-scale

Sal explains the basics of the **Richter scale** (Moment magnitude scale) and uses
this to compare the magnitude of 4 famous earthquakes.

www.britannica.com/science/Richter-scale

**Richter scale**: Widely used quantitative measure of the magnitude of an
earthquake, devised in 1935 by American seismologist Charles F. Richter. See
table.

www.scientificamerican.com/article/how-was-the-richter-scale

William Menke, a seismologist at the Lamont-Doherty Earth Observatory of
Columbia University, explains. The **Richter scale** was developed in 1935 by ...