PT - JOURNAL ARTICLE AU - Mazzoli, S. AU - Macchiavelli, C. AU - Ascione, A. TI - The 2013 Marche offshore earthquakes: new insights into the active tectonic setting of the outer northern Apennines AID - 10.1144/jgs2013-091 DP - 2014 Jul 01 TA - Journal of the Geological Society PG - 457--460 VI - 171 IP - 4 4099 - http://jgs.lyellcollection.org/content/171/4/457.short 4100 - http://jgs.lyellcollection.org/content/171/4/457.full SO - Journal of the Geological Society2014 Jul 01; 171 AB - A seismic sequence offshore the Marche region sheds new light on the active tectonic setting of the outer northern Apennines, revealing the existence of a previously unknown transcurrent seismogenic structure. In contrast to the Po Plain area, where vigorous seismicity testifies to active frontal thrusting, the seismotectonic setting of the Adriatic domain is characterized by the occurrence of active crustal strike-slip faults dissecting the thrust belt. As recent studies suggest that thrust faults represent the unique seismogenic sources characterizing the Adriatic sector of the outer northern Apennines, our results pose new challenges to the identification of seismogenic structures in the region.