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Related to Mercalli scale: Moment magnitude scale
Mer·cal·li scale(mər-kä′lē, mĕr-)
A scale of earthquake intensity based on observed effects and ranging from I (detectable only with instruments) to XII (causing almost total destruction).
[After Giuseppi Mercalli (1850-1914), Italian seismologist.]
[C20: named after Giuseppe Mercalli (1850–1914), Italian volcanologist and seismologist]
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|Noun||1.||Mercalli scale - a scale formerly used to describe the magnitude of an earthquake; an earthquake detected only by seismographs is a I and an earthquake that destroys all buildings is a XII|
geology - a science that deals with the history of the earth as recorded in rocks