Active Fault Systems in the Inner Northwest Apennines, Italy: A Reappraisal One Century after the 1920 Mw ~6.5 Fivizzano Earthquake - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Geosciences Année : 2021

Active Fault Systems in the Inner Northwest Apennines, Italy: A Reappraisal One Century after the 1920 Mw ~6.5 Fivizzano Earthquake

Giancarlo Molli
Isabelle Manighetti
Rick Bennett
  • Fonction : Auteur
Enrico Serpelloni
Fabrizio Storti
Tiziano Giampietro
Aurelien Bigot
  • Fonction : Auteur
Gabriele Pinelli
  • Fonction : Auteur
Serena Giacomelli
  • Fonction : Auteur
Alessio Lucca
  • Fonction : Auteur
Luca Angeli
  • Fonction : Auteur
Lorenzo Porta
  • Fonction : Auteur

Résumé

Based on the review of the available stratigraphic, tectonic, morphological, geodetic, and seismological data, along with new structural observations, we present a reappraisal of the potential seismogenic faults and fault systems in the inner northwest Apennines, Italy, which was the site, one century ago, of the devastating Mw ~6.5, 1920 Fivizzano earthquake. Our updated fault catalog provides the fault locations, as well as the description of their architecture, large-scale segmentation, cumulative displacements, evidence for recent to present activity, and long-term slip rates. Our work documents that a dense network of active faults, and thus potential earthquake fault sources, exists in the region. We discuss the seismogenic potential of these faults, and propose a general tectonic scenario that might account for their development.
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hal-03578548 , version 1 (17-02-2022)

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Giancarlo Molli, Isabelle Manighetti, Rick Bennett, Jacques Malavieille, Enrico Serpelloni, et al.. Active Fault Systems in the Inner Northwest Apennines, Italy: A Reappraisal One Century after the 1920 Mw ~6.5 Fivizzano Earthquake. Geosciences, 2021, 11 (3), pp.139. ⟨10.3390/geosciences11030139⟩. ⟨hal-03578548⟩
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