Un nouveau s\u00e9isme, de magnitude 3,5 selon le R\u00e9seau national de surveillance sismique (R\u00e9nass), a \u00e9t\u00e9 ressenti , ce vendredi 4 d\u00e9cembre \u00e0 6 h 59 dans la matin\u00e9e dans l\u2019agglom\u00e9ration de Strasbourg, o\u00f9 la poursuite d\u2019un projet de g\u00e9othermie a r\u00e9cemment \u00e9t\u00e9 stopp\u00e9e apr\u00e8s de pr\u00e9c\u00e9dents \u00e9pisodes sismiques.<\/p>\n
Le R\u00e9nass a class\u00e9 ce s\u00e9isme comme \u00ab induit \u00bb, c\u2019est-\u00e0-dire provoqu\u00e9 par l\u2019activit\u00e9 humaine. L\u2019\u00e9picentre du s\u00e9isme se trouve \u00e0 proximit\u00e9 d\u2019un site accueillant un projet de centrale g\u00e9othermique conduit par l\u2019entreprise Fonroche au nord de Strasbourg, dans les communes de Vendenheim et Reichstett.<\/p>\n
Sur ce site, deux puits ont \u00e9t\u00e9 creus\u00e9s \u00e0 5 kilom\u00e8tres de profondeur afin de pomper l\u2019eau chaude souterraine pour en exploiter en surface le potentiel \u00e9nerg\u00e9tique, avant de la r\u00e9injecter vers le sous-sol.<\/p>\n
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