epicentre

epicentre
Point on the surface of the Earth that is directly above the source (or focus) of an earthquake.

There the effects of the earthquake usually are most severe. See also seismology.

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      point on the surface of the Earth that is directly above the underground point (called the focus) where fault rupture commences, producing an earthquake. The effects of the earthquake may not be most severe in the vicinity of the epicentre. The epicentre can be located by computing arcs from each of three or more seismic observatories, with the arcs' radii proportional to the time of travel of seismic waves (seismic wave) from the focus to each station. The point of intersection of the arcs marks the epicentre. Equivalent algebraic analysis is conducted in computer programs.

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Universalium. 2010.

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  • épicentre — [ episɑ̃tr ] n. m. • 1885; de épi et centre ♦ Point ou zone de la surface terrestre qui constitue le foyer apparent des ébranlements au cours d un tremblement de terre (opposé à hypocentre, foyer réel ou souterrain). Épicentre sismique. ●… …   Encyclopédie Universelle

  • Épicentre — et hypocentre (ou foyer) Sur les autres projets Wikimedia : « épicentre », sur le Wiktionnaire (dictionnaire universel) Lors d un …   Wikipédia en Français

  • Epicentre — Épicentre Voir « épicentre » sur le Wiktionnaire …   Wikipédia en Français

  • epicentre — British English spelling of EPICENTER (Cf. epicenter); for spelling, see RE (Cf. re) …   Etymology dictionary

  • epicentre — (US epicenter) ► NOUN ▪ the point on the earth s surface vertically above the focus of an earthquake …   English terms dictionary

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  • epicentre — n. at the epicentre * * * at the epicentre …   Combinatory dictionary

  • epicentre — [[t]e̱pisentə(r)[/t]] epicentres N COUNT: usu with poss The epicentre of an earthquake is the place on the earth s surface directly above the point where it starts, and is the place where it is felt most strongly. The earthquake had its epicentre …   English dictionary

  • epicentre — UK [ˈepɪˌsentə(r)] / US [ˈepɪˌsentər] noun [countable] Word forms epicentre : singular epicentre plural epicentres the area of land directly over the centre of an earthquake …   English dictionary

  • epicentre — epicentras statusas T sritis fizika atitikmenys: angl. epicentre vok. Epizentrum, n rus. эпицентр, m pranc. épicentre, m …   Fizikos terminų žodynas

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