Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/7139
AuthorsFalcucci, E.* 
Gori, S.* 
Moro, M.* 
Pisani, A. R.* 
Melini, D.* 
Galadini, F.* 
Fredi, P.* 
TitleThe 2009 L’Aquila earthquake (Italy): what next in the region? Hints from stress diffusion analysis and normal fault activity
Issue Date2011
Series/Report no./305 (2011)
DOI10.1016/j.epsl.2011.03.016
URIhttp://hdl.handle.net/2122/7139
Keywords2009 L'Aquila earthquake
Middle Aterno Valley
Subequana Valley
paleoseismology
Coulomb stress diffusion
central Italy
Subject Classification04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology 
AbstractThis work aims at defining the contribution, in terms of earthquake probability assessment, of the integration of Coulomb stress diffusion analysis related to an earthquake with geological studies on fault activities, investigating the case of the April 6, 2009, L’Aquila (central Italy) earthquake (Mw 6.3). The analysis of the Coulomb stress diffusion induced by this earthquake has revealed a stress increase along two poorly-investigated active normal faults in the Apennines: the Subequana fault and the Middle Aterno Valley fault. No strong seismic events have been attributed to these tectonic structures over the past 800-1000 years, and they have therefore been considered as probable seismic gaps. Geological and paleoseismological investigations have since indicated that these tectonic structures belong to the same 25-30-km-long fault system that ruptured twice during the late Holocene. The last activation occurred between the 4th-1st century B.C. and the past millennium (probably during the 2nd-1st century B.C), with the penultimate between 6381±30 BP and 3511±37 BP. The data obtained indicate that this fault system might rupture during Magnitude up to 6.8 earthquakes and that the 2009 seismic event have brought these tectonic structures about 200 years closer to failure.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
FALCUCCI_ET_AL.docMain article134 kBMicrosoft WordView/Open
Show full item record

Page view(s)

103
checked on Apr 26, 2017

Download(s)

228
checked on Apr 26, 2017

Google ScholarTM

Check

Altmetric