Earthquake intensity is measured using the Modified Mercalli Scale. The scale indicates the perceived damage from an earthquake. These parameters are subjective: they depend on the conditions of buildings and the opinions of witnesses. To make the scale more objective, the US Geological Survey also use measurements of ground accelerations to measure earthquake intensity.
Earthquake magnitude is measured using the Richter magnitude scale and is widely reported as a measurement of earthquake strength (derived from the peak amplitude of the seismic wave from an earthquake as measured on a seismometer), but it has largely been replaced by the moment magnitude scale (derived based on the elastic moduli of the crust where the earthquake occurred, the length of the slip surface and the cross sectional area of the slip surface) which estimates the total energy released in an earthquake.
The modern earthquake intensity scale was originally developed by Michele Stefano de Rossi (an Italian seismologist) and François-Alphonse Forel (a Swiss scientist) and was known as the Rossi-Forel scale.
It was developed in around 1882 and introduced the concept of an intensity scale based on measured and perceived ground shaking and the damage to structures.
This was later revised by a number of scientists including in 1906 by Giuseppe Mercalli (an Italian vulcanologist). This was given the name the Mercalli Intensity scale.
Further revisions were made by a number of scientists including Charles Richter and this eventually became known as the Modified Mercalli Scale.
In Europe a further modification was made to the intensity scale where it is named the Macroseismic scale.
The Richter scale, the scale used to measure earthquakes, was invented in the 1930's by Dr.Charles Richter, a seismologist at the California Institute of Technology. :)
Michele Stefano de Rossi (an Italian seismologist)
Mercalli scale
Wayne smith
Earthquakes.
a Richter scale
Yes it does. The Richter Scale measures intensity for earthquakes!!
An earthquakes intensity
Scientists normally use something called the Richter scale to measure earthquakes. They measure in maginitude. 1 on the Richter scale would be small vibrations through the earthquake zone where as 10 would be total destruction. Hope that's helped!
Charles Richter
Richter scale
me
Earthquakes.
The Richter scale
You can measure earthquakes on the Moment magnitude scale or the Richter scale
Richter Scale
magnitude
the rictor scale
An earthquakes intensity
the rigter scale
Developed in 1935 by Charles Richter in collaboration with Beno Gutenberg