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Integrated near surface geophysics across the active Mount Marzano Fault System (southern Italy): seismogenic hints (Articolo in rivista)

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Integrated near surface geophysics across the active Mount Marzano Fault System (southern Italy): seismogenic hints (Articolo in rivista) (literal)

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Galli, P.A.C. (a,b) , Giocoli, A. (c,d), Peronace, E. (b), Piscitelli, S. (c), Quadrio, B. (b), Bellanova, J. (c) (2014)
Integrated near surface geophysics across the active Mount Marzano Fault System (southern Italy): seismogenic hints
in International journal of earth sciences (1999, Print); Springer Berlin / Heildelberg, Berlin (Germania)
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Galli, P.A.C. (a,b) , Giocoli, A. (c,d), Peronace, E. (b), Piscitelli, S. (c), Quadrio, B. (b), Bellanova, J. (c) (literal)

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a Dipartimento Protezione Civile Nazionale, Rome, Italy; b CNR-IGAG, Monterotondo, Rome, Italy; c CNR-IMAA, Tito Scalo, Potenza, Italy; d ENEA-Casaccia, Rome, Italy. (literal)

Titolo

Integrated near surface geophysics across the active Mount Marzano Fault System (southern Italy): seismogenic hints (literal)

Abstract

Here, we describe an original geophysical multi-method approach applied to the Mount Marzano Fault System. This is one of the most hazardous seismogenic faults of the Apennines (Irpinia, southern Italy), and it was responsible for the 1980, Mw 6.9, earthquake, along with many others before. We carried out electrical resistivity tomography (ERT), ground penetrating radar (GPR) measurements, and horizontal-to-vertical spectral ratio (HVSR) microtremor analysis along several common transects designed across the potential and/or certain fault traces. The data obtained from these non-invasive, inexpensive, expeditious methods mutually integrate with and complement each other, providing a valuable subsurface image of the near surface fault architecture. ERT depicts the general shallow image of the fault zone and of the fault-controlled sedimentary basin, with the depth of the buried bedrock cross-correlated through ambient-noise HVSR results. GPR delineates the very shallow geometry of the fault and of the associated deformation. Coupled with previous paleoseismological studies, these data allow the evaluation of some fault parameters and the precise locating of the fault trace, to aid future paleoseismological investigations aimed at seismic risk reduction programs. (literal)

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