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AuthorsMalagnini, L.* 
Scognamiglio, L.* 
Mercuri, A.* 
Akinci, A.* 
Mayeda, K.* 
TitleStrong evidence for non-similar earthquake source scaling in central Italy
Issue Date2008
Series/Report no./35 (2008)
Subject Classification04. Solid Earth::04.06. Seismology::04.06.03. Earthquake source and dynamics 
Abstractscaling of seismic sources of the Central Apennines (Italy) is investigated using broadband seismograms from the Colfiorito sequence (4<=Mw<=6 ). Our results are not consistent with self-similar scaling, and can be described by the following relationship: M0~fc^-(3_epsilon), where epsilon=1.7+-0.3 . We speculate that dynamic fault lubrication by fluid pressurization may be responsible for such extreme behavior, and use our results for the calibration of a weak-motion-based predictive relationship for the ground motion ( Mw<=4.1) up to Mw~6 for this region.
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