3D Subsoil Model of the San Biagio ‘Salinelle’ Mud Volcanoes (Belpasso, Sicily) derived from Geophysical Surveys

Imposa, Sebastiano; Grassi, Sabrina; Guidi, Giorgio De; Battaglia, Franco; Lanaia, G.; Scudero, Salvatore

doi:10.1007/s10712-016-9380-4

Cited by 26 publications

(7 citation statements)

References 42 publications

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“…This morphometric structure is typical of uplifting areas and therefore relative decrease in the base level. This suggests an inflection process of the volcano ground surface induced by an increase in fluid pressure inside of a shallower stagnation chamber which is located at a depth of about 30 m (Imposa et al, 2018). The stagnation chamber has a "sill-like" geometry, a radius of about 50 m and a thickness of about 30 m. This morphostructural configuration supported by geophysical data configures the active geological structure as a high potential geological hazard.…”

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confidence: 74%

UAV survey method to monitor and analyze geological hazards: the case study of the mud volcano of Villaggio Santa Barbara, Caltanissetta (Sicily)

Brighenti

Carnemolla

Messina

et al. 2021

Nat. Hazards Earth Syst. Sci.

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Abstract. Active geological processes often generate a ground surface response such as uplift, subsidence and faulting/fracturing. Nowadays remote sensing represents a key tool for the evaluation and monitoring of natural hazards. The use of unmanned aerial vehicles (UAVs) in relation to observations of natural hazards encompasses three main stages: pre- and post-event data acquisition, monitoring, and risk assessment. The mud volcano of Santa Barbara (Municipality of Caltanissetta, Italy) represents a dangerous site because on 11 August 2008 a paroxysmal event caused serious damage to infrastructures within a range of about 2 km. The main precursors to mud volcano paroxysmal events are uplift and the development of structural features with dimensions ranging from centimeters to decimeters. Here we present a methodology for monitoring deformation processes that may be precursory to paroxysmal events at the Santa Barbara mud volcano. This methodology is based on (i) the data collection, (ii) the structure from motion (SfM) processing chain and (iii) the M3C2-PM algorithm for the comparison between point clouds and uncertainty analysis with a statistical approach. The objective of this methodology is to detect precursory activity by monitoring deformation processes with centimeter-scale precision and a temporal frequency of 1–2 months.

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confidence: 74%

UAV survey method to monitor and analyze geological hazards: the case study of the mud volcano of Villaggio Santa Barbara, Caltanissetta (Sicily)

Brighenti

Carnemolla

Messina

et al. 2021

Nat. Hazards Earth Syst. Sci.

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“…Moreover, the morpho-structural study of mud volcanoes distributed along the frontal sector of the Sicilian collisional belt (San Biagio, Santa Barbara and Aragona villages) (Fig. 1) (Imposa et al, 2016;Madonia et al, 2011) also represents a clue that could be used as a proxy for supplementary stress and strain indicators. In fact, on a regional scale, mud volcanoes in active fold-and-thrust belts may occur over wider areas or may cluster along discrete structures, where the generation of overpressures is expected to establish a positive feedback loop allowing for fault movement and mud volcanism.…”

Section: Bibliografiamentioning

confidence: 99%

The Use of Continuous Wavelet Transform for Ground-Roll Attenuation

Tognarelli

2018

Proceedings

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Finito di stampare nel mese di novembre 2017 gngts.inogs.it IV GNGTS 2017 Prefazione Molte note (148) sono in lingua inglese: ciò permette una diffusione del presente volume anche all'estero. Delle 221 note in programma, ben 175 sono destinate alla presentazione orale. Anche quest'anno alcune sessioni del convegno (quelle di Geofisica Applicata) sono state organizzate in collaborazione con la Sezione Italiana EAGE-SEG, che realizza così il suo 17° Convegno Nazionale.Una segnalazione degna di nota va all'Associazione Geofisica Licio Cernobori, che ha scelto anche quest'anno il convegno GNGTS quale sede per l'attribuzione del premio in memoria di un caro collega ed amico prematuramente scomparso anni or sono.Un ringraziamento particolare va ai convener (

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“…In recent years, many authors have also successfully tested the reliability of HVSRs in estimating local effects linked to the presence of different morphological conditions such as landslides, faults, etc. [15][16][17][18][19][20]. Moreover, being a non-invasive technique, it can be used in cultural heritage sites [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Ambient Vibrations Measurements and 1D Site Response Modelling as a Tool for Soil and Building Properties Investigation

et al. 2018

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Abstract:The safety of historic buildings heritage is an important task that becomes more substantial when it is directed to educational purposes. The present study aims at evaluating the dynamic features of the Benedettini complex, a historic monastery located in downtown Catania, which is at present the headquarters of the humanistic studies department of the University of Catania. Both the building's complex response to a seismic input and the soil-structure interaction were investigated using ambient noise recordings. The results point out a multiple dynamic behaviour of the monastery structure that shows several oscillation modes, whereas the identification of a single natural frequency can be observed in some sites where the structure can more freely oscillate. This observation is also confirmed by the variability of computed damping values that appear linked to the different rigidity of the structure, as a function of the either the longitudinal or transversal orientation of the investigated structural elements. Moreover, the comparison between the building's fundamental period and spectral ratios frequencies, which were obtained from free field ambient noise measurements located outside the monastery, outline the presence of potential resonance effects between the site and structure during a seismic event. Numerical modelling of the local seismic response confirms the obtained experimental site frequencies, setting into evidence that higher amplification factors are reached in the same frequency range characterizing the building.

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3D Subsoil Model of the San Biagio ‘Salinelle’ Mud Volcanoes (Belpasso, Sicily) derived from Geophysical Surveys

Cited by 26 publications

References 42 publications

UAV survey method to monitor and analyze geological hazards: the case study of the mud volcano of Villaggio Santa Barbara, Caltanissetta (Sicily)

UAV survey method to monitor and analyze geological hazards: the case study of the mud volcano of Villaggio Santa Barbara, Caltanissetta (Sicily)

The Use of Continuous Wavelet Transform for Ground-Roll Attenuation

Ambient Vibrations Measurements and 1D Site Response Modelling as a Tool for Soil and Building Properties Investigation

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