Highlights

GEALAB

GeALab – GEophysics Applied to the environmental geology, the heritage and the earthquake engineering Lab

Responsible of the Laboratory: Iolanda Gaudiosi (Researcher)

Address: Area della Ricerca di Roma 1 - Montelibretti

Via Salaria km 29.300, 00015 Monterotondo Stazione ROMA

Phone: +39 06 90672608

email: iolanda.gaudiosi@igag.cnr.it

Responsible for the DTC (Lazio Region Excellence Centre): Massimiliano Moscatelli (Researcher)

GeALab team: Federico Mori (Technologist), Maurizio Simionato (Researcher), Maria Chiara Caciolli (Research fellow), Carolina Fortunato (Research fellow), Silvia Giallini (Research fellow, PhD), Federica Polpetta (Research fellow, PhD), Roberto Razzano (Research fellow, PhD Student), Alessandro Settimi (Research fellow), Pietro Sirianni (Research fellow), Simone Toschi (Research fellow).

 

Misura di rumore sismico (Chiesa di San Pietro, Tuscania) - Seismic noise measurement (San Pietro Church, Tuscania, central Italy)
Misura di rumore sismico (Chiesa di San Pietro, Tuscania) - Seismic noise measurement (San Pietro Church, Tuscania, central Italy)
Array di geofoni (Stracciacappa, Lazio) - Array of geophones (Stracciacappa, Lazio region)
Misure di rumore sismico: stazione singola e array 2D (Chiesa di San Nicola, Randazzo) - Seismic noise measurements: single station and 2D array (San Nicola Church, Randazzo, Sicily)
Prospezione geofisica in foro down–hole (studi di Microzonazione Sismica, Amatrice) - Down–hole prospection (Seismic Microzonation studies, central Appennine)
Misura di rumore sismico (Arco di Costantino, Roma) - Seismic noise measurement (Costantine’s Arch, Rome)
Misura di rumore sismico (Durazzo, Albania) - Seismic noise measurement (Durrës, Albania)
Misura di rumore sismico (studi di Microzonazione Sismica, Amatrice) - Seismic noise measurement (Seismic Microzonation studies, central Appennine)
Prospezione geofisica in foro down–hole (studi di Microzonazione Sismica, Amatrice) - Down–hole prospection (Seismic Microzonation studies, central Appennine)
Array di geofoni per misure di geofisica attiva MASW (Isola di Capri) - Array of geophones for a geophysical MASW prospection (Island of Capri)
Array di geofoni (Isola di Capri) - Array of geophones (Island of Capri)

Projects of the last three years: PON Governance Seismic and Volcanic Risks (2017-2021); CNR IGAG - DPC Agreement UrbiSIT 7 (2019-2021); CNR IGAG - DPC Agreement UrbiSIT 6 (2018); CNR-MOES/ Albania Join Research (2018); Support and scientific coordination of the III level seismic microzonation studies in the Ischia island (2018-2019); Government Commissioner for the Reconstruction after the seismic sequence 2016-2017 (2017-2018); EmerTer (2017); Ipogea of the Collosseum (2017).

 

GeALab team’s equipments:

1 Lennartz three-component velocity sensor with a 0.2Hz cut-off frequency (LE-3D/5s);

7 SARA three-component velocity sensors with a 0.2Hz cut-off frequency (SS02);

1 SARA three- channels data logger, including integrated battery and GPS (SL06);

3 SARA six-channels data loggers, including integrated battery and GPS (SL06);

1 all-in-one seismic station named Tromino;

1 24-bit seismograph for seismic surveys (A6000S);

24 horizontal geophones with a 4.5 Hz cut-off frequency;

24 vertical geophones with a 4.5 Hz cut-off frequency;

1 five-components sensor for geophysical in-hole and down-hole measurements;

8 PCB ICP accelerometers;

2 LMS SCADAS XS SIEMENS data loggers, including integrated battery and GPS.

 

GeALab team’s background:

GeALab is the place where CNR IGAG Researchers work for the following activities:

  • local seismic hazard assessment, even in the case of sites where application of non-invasive methods is necessary (i.e. for cultural heritages);
  • subsoil model reconstructions;
  • definition of the variability of the expected seismic actions linked to the presence of heterogeneity in the subsoil or the presence of particular geomorphological conformations;
  • structural health monitoring of artefacts, including historical and architectural heritages.

The available instrumentation allows the application of geophysical techniques conducted in passive mode (single station noise measurements or according to 2D geometries) and active (MASW and Down-Hole). Array measurements can also be used in non-free field environments: for these latter, it is possible to obtain, and monitor in time, the modal shapes and the dynamic characteristics of the observed systems.

One of the 2D array techniques used by the GeALab team is based on the calculation of the average correlation functions between the seismic noise signals acquired at seismic stations or arrays of geophones. From these latter, it is possible to reconstruct the dispersion curve of a site and to obtain, through appropriate data inversion procedures, the variation with the depth of some mechanical properties (in particular the S waves velocity, VS waves). VS profiles are important for the study of the site effects.

The basic application scheme of all these techniques consists of the following three steps:

1) measuring noise by means of an array of seismic stations or synchronized geophones (seismic antenna) suitably arranged on the surface;

2) estimating the apparent dispersion curve of the Rayleigh surface waves;

3) solving the inverse problem to estimate the waves S velocity profile with depth [Vs (z)], looking for the best-fit between the experimental and theoretical dispersion curve, constraining the analysis with the ellipticity of the Rayleigh waves.

 

curva Rayleigh

Main scientific products in the period 2018-2020:

Mori F., Gena A., Mendicelli A., Naso G., Spina D. (2020) The seismic emergency system evaluation: the role of seismic hazard and local effects. Engineering Geology (submitted)

N. Tsereteli, M. Moscatelli, D. Albarello, I. Gaudiosi, S. Giallini, Z.Gogoladze, F. Polpetta, M. Simionato, F.Stigliano, D. Svanadze, L. Danciu ,O.Varazanashvili, G. Gaprindashvili (2020) Building knowledge for geohazard assessment and management in the Caucasus and other orogenic regions. Edited on the Springer Journal: NATO Science for Peace and Security Series (submitted)

I. Gaudiosi, M. Moscatelli, M. Mancini, M. Simionato, G. P. Cavinato, R. Razzano, P. Sirianni, F. Stigliano, G. Vignaroli (2020) Application of a synthetic damage‑constrained seismic hazard parameter to the Amatrice village (central Italy) case study: insights after the august 24, 2016 Mw 6.0 earthquake, ESG6 Kyoto 2021

G.A. Alleanza, A. d’Onofrio, F. Gargiulo, F. Silvestri, M. Mancini, I. Gaudiosi, M. Caciolli, G. Cavuoto, V. Di Fiore, G. Milana, M. Vassallo (2020) Valutazione della risposta sismica locale di alcune aree dell’Isola di Ischia per la pianificazione di interventi di mitigazione del Rischio Sismico. XXVII CNG: Contributo 1183

D. Spina, G. Acunzo, N. Fiorini, F. Mori and M. Dolce (2019) A probabilistic simplified seismic model of masonry buildings based on ambient vibrations. Bulletin of Earthquake Engineering, vol. 17, no. 2, pp. 985-1007

M. Mancini, I. Gaudiosi, M.C. Caciolli, G. Cavuoto, V. Di Fiore, G. Milana, M. Vassallo, F. Silvestri, A. d’Onofrio, G. A. Alleanza, P. Pompa, M. Coltella, G. Cosentino, A. Pietrosante, E. Tarquini (2019) Assessment of site effects in volcanic areas: results from Seismic Microzonation studies in the Island of Ischia (Naples, Italy). GNGTS, Roma, 2019. pp 1-3

A. Pagliaroli, I. Gaudiosi, R. Razzano, S. Giallini, F. de Silva, A. Chiaradonna, A. Ciancimino, S. Foti (2019) Site response analyses for seismic microzonation: case-histories, results and applications after the 3rd level studies in Central Italy. Abstract esteso de: “VII International Conference on Earthquake Geotechnical Engineering”, Rome 2019, pp.8

I. Gaudiosi, G. Vignaroli, M. Mancini, M. Moscatelli, M. Simionato, P. Sirianni, R. Razzano, E. Peronace, S. Piscitelli, C. Madiai & Amatrice Working Group (2019) Site effects in Saletta damaged area of Amatrice municipality (Central Italy) after the 24th August 2016 earthquake. Abstract esteso de: “VII International Conference on Earthquake Geotechnical Engineering”, Rome 2019, pp.1-8

R. Razzano, G. Vignaroli, A. Pagliaroli, M. Moscatelli, I. Gaudiosi, S. Giallini, M. Mancini, F. Polpetta, M. Simionato, P. Sirianni, G. Sottili, J. Bellanova, G. Calamita, A. Perrone, S. Piscitelli (2018) Local seismic hazard assessment in explosive volcanic settings by 1D and 2D numerical analyses, Abstract del 36th European Seismological Commission Congress, Malta 2018

S. Giallini, G. Vignaroli, F. Polpetta, P. Sirianni, I. Gaudiosi, M. Simionato, R. Razzano, A.Pagliaroli, M. Moscatelli, M. Mancini, G. P. Cavinato (2018) Assessing directional amplification of seismic noise in faulted rock masses for site response investigation in complex geological settings. Abstract del 36th European Seismological Commission Congress, Malta 2018, ISBAN 978-88-98161-12-6

G. Vignaroli, S. Giallini, F. Polpetta, P. Sirianni, I. Gaudiosi, M. Simionato, R. Razzano, A. Pagliaroli, M. Moscatelli, M. Mancini, G.P. Cavinato, A. Avalle (2018) Domains of seismic noise response in faulted limestone (central Apennines, Italy): insights for fault-related site effects and seismic hazard. Bulletin of Engineering Geology and the Environment, DOI 10.1007/s10064-018-1276-8, pp. 1-20, ISSN: 1435-9529 (print) – 1435-9537 (online)

V. D'Intinosante, M. Baglione, P. Fabbroni, L. Nistri, F. Vannini, G. D'Amato Avanzi, A. Puccinelli, G. Naso, G. Cavuoto V. Di Fiore, N. Pelosi, M. Punzo, D. Tarallo, M. Moscatelli, M. Simionato, D. Pileggi, A. Avalle, A. Pagliaroli, G. Vessia, S. Piscitelli, A. Perrone, J. Bellanova, G. Calamita, G. Ginesi, F. Bramerini, S. Castenetto, P. Galli, F. Pallone, D. Albarello (2019) Microzonazione sismica di livello 3: il caso del centro abitato di Fivizzano (MS), Roma, 2019. Curatela di numero monografico (di rivista o di collana) ISBN 978 88 8080 334 8

E. Paolucci, D. Albarello, S. D'Amato, G.P. Cavinato, G. Cavuoto, M. Coltella, G. Cosentino, M. Simionato (2018) Caratterizzazione sismica a grande scala della Provincia di foggia tramite l'analisi delle componenti principali (PCA) di misure HVSR. GNGTS, Bologna 2018

Twitter

We use cookies to improve our website and your experience when using it. Cookies used for the essential operation of this site have already been set. To find out more about the cookies we use and how to delete them, see our privacy policy.

  I accept cookies from this site.

Area riservata

We use cookies to improve our website and your experience when using it. Cookies used for the essential operation of this site have already been set. To find out more about the cookies we use and how to delete them, see our privacy policy.

  I accept cookies from this site.