[Rockhounds] NATIONAL RICHTER SCALE DAY – April 26

[Kreigh Tomaszewski]

National Richter Scale Day on April 26th each year honors the birth of the
Richter Scale inventor, Charles F. Richter (April 26, 1900 – September 30,
1985).

Richter was an American seismologist and physicist most famous as the
inventor of the Richter magnitude scale, which quantified the size of
earthquakes. While working at the California Institute of Technology, with
Beno Gutenberg, Richter first used the scale in 1935.

After publishing the Richter Scale in 1935, it immediately became the
standard measure of earthquake intensity. Since 1935, there have been other
magnitude scales developed. Depending on the data available, different
scales are used. However, most are not as popularly known as Richter Scale.

https://nationaldaycalendar.com/days-2/national-richter-scale-day-april-26/