magnitude

ALASKA VOLCANO OBSERVATORY GLOSSARY
A measure of the size of an earthquake, determined by measuring the highest-amplitude waves and correcting for distance and type of instrument. The scale is logarithmic, so each increase of one unit corresponds to amplitude increase of a factor of 10.
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GLOSSARY OF VOLCANIC TERMS
A numerical measure of the size of an earthquake based on the amount of seismic energy released. The magnitude of an earthquake is determined by measuring the highest-amplitude waves and correcting for distance and the type of seismometer used (McNutt, 2000, p. 1015). The seismic magnitude scale is logarithmic, with each increase in one unit on the scale equivalent to a tenfold increase in the wave amplitude.

Glossary of volcanic terms. - University of Wisconsin Oshkosh. . 2001.

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  • magnitude — [ maɲityd ] n. f. • 1892; « grandeur, puissance » 1372; lat. magnitudo 1 ♦ Astron. Magnitude apparente : nombre caractéristique du flux de rayonnement reçu d un astre. 2 ♦ Géophys. Magnitude d un séisme : son énergie totale, mesurée selon une… …   Encyclopédie Universelle

  • Magnitude — may refer to: In mathematics: Magnitude (mathematics), the relative size of a mathematical object Magnitude (vector), a term for the size or length of a vector Scalar (mathematics), a quantity defined only by its magnitude Euclidean vector, a… …   Wikipedia

  • Magnitude — Mag ni*tude, n. [L. magnitudo, from magnus great. See {Master}, and cf. {Maxim}.] 1. Extent of dimensions; size; applied to things that have length, breadth, and thickness. [1913 Webster] Conceive those particles of bodies to be so disposed… …   The Collaborative International Dictionary of English

  • magnitude — [mag′nə to͞od΄, mag′nətyo͞od΄] n. [L magnitudo < magnus, great: see MAGNI ] 1. greatness; specif., a) of size b) of extent c) of importance or influence d) Obs. of character 2 …   English World dictionary

  • Magnitude 10,5 — Données clés Titre original 10.5 Réalisation John Lafia Scénario Christopher Canaan, Ronnie Christensen, John Lafia Pays d’origine États Unis Genre Catastrophe …   Wikipédia en Français

  • magnitude — [n1] importance consequence, degree, eminence, grandeur, greatness, import, mark, moment, momentousness, note, pith, significance, signification, weight, weightiness; concept 668 Ant. insignificance, unimportance magnitude [n2] size admeasurement …   New thesaurus

  • magnitude — I noun amplitude, amplitudo, bearing, concern, consequence, consideration, degree, dimension, effect, eminence, enormity, essentiality, extension, extent, gauge, gravity, immensity, import, importance, magnitudo, mark, materiality, materialness,… …   Law dictionary

  • magnitude — (n.) c.1400, greatness of size or character, from L. magnitudo greatness, bulk, size, from magnus great (see MAGNATE (Cf. magnate)) + tudo, suffix forming abstract nouns from adjectives and participles (see TUDE (Cf. tude)). Meaning size, extent… …   Etymology dictionary

  • magnitude — s. f. 1. Qualidade do que é magno. 2. Importância; grandeza …   Dicionário da Língua Portuguesa

  • magnitude — volume, *size, extent, dimensions, area Analogous words: amplitude, *expanse, stretch, spread: *bulk, mass, volume …   New Dictionary of Synonyms

  • magnitude — Magnitude, Magnitudo …   Thresor de la langue françoyse

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