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Authors: Talone, Donato
De Siena, Luca
Lavecchia, Giusy
de Nardis, Rita
Title: The attenuation and scattering signature of fluid reservoirs and tectonic interactions in the Central-Southern Apennines (Italy)
Online publication date: 1-Dec-2023
Year of first publication: 2023
Language: english
Abstract: Despite the high detection level of the Italian seismic network and the risk associated with its fault networks, Central-Southern Italy has no unique geophysical model of the crust able to illuminate its complex tectonics. Here, we obtain seismic attenuation and scattering tomography models of this area; both reveal high attenuation and scattering anomalies characterizing the entire Apenninic Chain and related to its East- and West-dipping extensional Quaternary tectonic alignments. Fault-associated fractured zones become preferential ways for circulating and degassing high-attenuation CO2-bearing fluids. A previously undetected fluid source area is a high-attenuation volume below the Matese complex, while a similar smaller anomaly supports a fluid source near L'Aquila. The most prominent low attenuation and scattering volumes reveal a locked aseismic zone corresponding to the Fucino-Morrone-Porrara fault systems, representing a zone of significant seismic hazard.
DDC: 550 Geowissenschaften
550 Earth sciences
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 09 Chemie, Pharmazie u. Geowissensch.
Place: Mainz
Version: Published version
Publication type: Zeitschriftenaufsatz
License: CC BY
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Journal: Geophysical research letters
Pages or article number: e2023GL106074
Publisher: Wiley
Publisher place: Hoboken, NJ
Issue date: 2023
ISSN: 0094-8276
Publisher DOI: 10.1029/2023gl106074
Appears in collections:DFG-491381577-G

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