The 2016--2017 Central Italy seismic sequence: Complex fault geometries and source models.

Scognamiglio L.

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IV - Geofisica e fisica dell'ambiente
GSSI Ex ISEF - Aula D - Giovedì 26 h 09:00 - 12:30
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The Apennines have been struck by several seismic sequences in recent years, showing evidence of the activation of multiple segments of normal fault systems in a relatively short time spans, as in the case of the 1980 Irpinia earthquake, the 1997 Umbria-Marche sequence, the 2009 L'Aquila earthquake and the 2016--2017 Amatrice-Visso-Norcia sequence. All these seismic sequences show a significant complexity during individual mainshock with earthquake ruptures displaying heterogeneous slip distributions. In this contribution, we show the kinematic source models for the main earthquakes with the aim of discussing extensional and formerly compressional structures and their role in driving fault segmentation.

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