1,721,057 research outputs found
Long-term crustal rheology and seismicity distribution in the Southern Apennines of Italy: shallow crust extensional and deep crust strike-slip earthquakes
No full textUn modello reologico per la sismicità crostale profonda (h>15 km) dell'area di Potenza: implicazioni per la sismotettonica dell'avampaese apulo
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Confronto fra due differenti metodi per l'inversione del campo di sforzi attivo da meccanismi focali di terremoti. Applicazione all'area padano-adriatica.
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Deep-crust strike-slip earthquake faulting in southern Italy aided by high fluid pressure: insights from rheological analysis
No full textUna nuova interpretazione del profilo CROP 03 nel tratto Castiglion Fiorentino – M. Castellaccio: vincoli da dati geologici di superficie di recente acquisizione
No full textMicrozonation study in the Paganica-San Gregorio area affected by the April 6, 2009 L’Aquila earthquake (central Italy) and implications for the reconstruction
No full textArchitecture and seismotectonics of a regional Low-Angle normal fault in central Italy.
No full textInformation from surface geology, subsurface geology (boreholes, seismic reflection, and refraction profiles), and seismicity are used to depict the geometry and the possible seismogenic role of the Altotiberina Fault (AF), a lowangle normal fault in central Italy. The AF extends along the
inner Umbria region, for a length of-70 km, with an average dip of-30 ø and an horizontal displacement up to 5 km. It emerges west of the inner border of the Tiber basin and deepens beneath the Umbria-Marche carbonate fold-and-thrust belt to a depth of 12-14 km. Close to the AF surface trace,
low-angle synthetic east dipping normal faults extensively outcrop, whereas high-angle antithetic west dipping normal faults prevail farther east. Integrating geological and seismologic information, it can be stated that the AF behaves as an active extensional fault zone and represents the basal detachment of the west dipping seismogenic normal faults of the Umbria-Marche region. The AF belongs to a regional NE dipping low-angle normal fault system (Etrurian Fault System (EFS)), which extends for-350 km from northwestern Tuscany to southern Umbria. Early preliminary considerations suggesthat the EFS may play an important role in controlling active extension and related seismicity in northern central
Italy
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