Giuseppe Mercalli is credited as the creator of the modified Mercalli intensity scale, sometimes known as the Mercalli scale.
The scale is employed to quantify earthquake damage. People waking up, furniture shifting, and objects becoming damaged are all important components of this scale. Because the scale is dependent on the witnesses, it is thought to be less effective in remote regions. The overall damages are rated on the Mercalli scale from I to XII.
Seismic waves are recorded by seismographs. The "size" or amplitude of the seismic waves produced by an earthquake source and detected by seismographs is a measure of an earthquake's magnitude. (The section on seismic waves describes the types and characteristics of these waves.) Due to the wide variation in earthquake size, a mathematical technique must be used to compress the range of wave amplitudes reported on seismograms for comparison.
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