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Macroseismic Intensity

The Macroseismic Intensity is a qualitative measure of the strength of ground shaking at a particular site. They are here expressed in EMS-98 (European Macroseismic Scale). The EMS-98 has 12 divisions, as follows:

F Effects: Felt
I Effects: Not Felt
II Effects: Scarcely Felt
III Effects: Weakly Felt
IV Effects: Largely Observed
V Effects: Strong Shaking
VI Effects: Slightly Damaging
VII Effects: Damaging
VIII Effects: Heavily Damaging
IX Effects: Destructive
X Effects: Very Destructive
XI Effects: Devastating
XII Effects: Completely Devastating