The moment magnitude scale, it replaced the Richter scale.
The scale that chemists use to describe the concentration of hydronium ions in a solution is know as the pH Scale
The Modified Mercalli Scale
Sir Frances Beaufort.
They use the Beaufort scale to classify winds and wind speeds.
a Richter scale
the fujita scale now called enhanced fujita scale
The moment magnitude scale, it replaced the Richter scale.
The moment magnitude scale has replaced the Richter Scale.
pH scale
The Richter Scale
pH scale :)
pH scale
to
The scale used to measure the strength of an earthquake is called the Richter scale
Mercalli scale
scale