earthquake magnitude (earthquake intensity) The magnitude of an earthquake can be estimated from its destructiveness using the Mercalli scale. As this measure is also dependent on the local geologic and building context, it has been largely replaced by the Richter scale, based on the amplitude of seismic waves.
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Mercalli Scale , Mercalli scale An earthquake-intensity scale based on direct observation. Devised by G.Mercalli, it ranges from scales I (not felt) and II (felt by m… Scale , scale1 / skāl/ • n. 1. each of the small, thin horny or bony plates protecting the skin of fish and reptiles, typically overlapping one another. 2. s… scale insect , scale in·sect • n. a small insect (suborder Homoptera) with a protective shieldlike scale. It spends most of its life attached by its mouth to a sing… Cosmoid Scale , Skip to main content cosmoid scale Scale (zoology) , scales The small bony or horny plates forming the body covering of fish and reptiles. The wings of some insects, notably the Lepidoptera (butterflies… Placoid Scale , Skip to main content placoid scale placoid scale (dermal centicle) A type of scale that comprises the basic unit of the hard skin cover of sharks. It…
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