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Authors: Riguzzi, F.* 
Barba, S.* 
Carminati, E.* 
Crespi, M.* 
Devoti, R.* 
Doglioni, C.* 
Pietrantonio, G.* 
Pisani, A. R.* 
Title: The brittle-ductile transition as the switch of earthquakes: applications for seismic prediction
Issue Date: 5-Aug-2012
Keywords: brittle-ductile transition
L' Aquila 2009 earthquake
Emilia 2012 earthquake
geodetic strain rate
fault activation
Subject Classification04. Solid Earth::04.03. Geodesy::04.03.01. Crustal deformations 
04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology 
Abstract: The brittle-ductile transition (BDT) separates the lower crust where deformation occurs in steady-state regime, from the upper crust where it is rather dominated by stick-slip. The fault hangingwall above BDT accumulates elastic energy during the interseismic period, without significant evidence of surface strain rate Faults activate in areas of high strain rate gradients along the segments with lower strain rates Fluid discharge varies as a function of the tectonic setting The phenomenology gives insights for the parameters to be monitored in earthquake forecasting
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