The Richter scale uses Arabic numerals.
the mercalli scale uses roman numerals and measures how much damage there was in the earthquake. the richter scale uses a needle with ink and does sort of a line graph and measures the magnitude of an earthquake.
The Richter scale
My rebuilt engine is about 7.5 on the Richter scale! Yesterday's earthquake read 3.2 on the Richter scale. The Richter scale was developed in the 1930s.
Well, first off, nobody actually uses the Richter scale anymore, the most common scale is the Moment Magnitude Scale. So that would be one way. There are other scales as well.
Richter Scale
Richter scale
Richter scale
Richter scale
That is impossible as the Richter scale is for measuring earthquakes.
It reached 7.0 on the richter scale
4-5 on the Richter scale.