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  • 1
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    An overview of earthquake related liquefaction events in Italy (2011)
    Details
    Publication Date: 2020-11-30
    Description: This report was prepared by Mr Edoardo Borgomeo during the summer pause of Imperial College (London, UK) lectures. Mr Borgomeo have joined the Istituto Nazionale di Geofisica e Vulcanologia (Italian Institute of Geophysics and Volcanology) for an internship under the supervision of Dr. Giuseppe Di Capua and Prof Silvia Peppoloni. This internship was an opportunity to gain an understanding on the functioning of a research institute and on the tasks a researcher has to undertake in the creation of a scientific publication. The result of the internship is presented in the following report that investigated the phenomenon of liquefaction under seismic conditions. The most serious direct effect of earthquakes on buildings and structures is ground shaking. However earthquake shocks might pose other hazards in the form of soil liquefaction, which can result in considerable financial losses. Some soils such as quicksands and quickclays can give rise to major problems when disturbed by ground shaking. The ground vibrations produced by an earthquake lead to a decrease in the effective stress and in the shear strength of the soil which in turn trigger the liquefaction.
    Description: Istituto Nazionale di Geofisica e Vulcanologia, Roma, Italia
    Description: Published
    Description: 4.1. Metodologie sismologiche per l'ingegneria sismica
    Description: open
    Keywords: soil liquefaction ; Italian case histories ; ground shaking ; liquefaction mapping ; 04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: report
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  • 2
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    Una scheda per la risposta sismica locale: la carta di identità geologica di un bene monumentale/archeologico (2012)
    Electa Mondadori
    Details
    Publication Date: 2017-04-04
    Description: La risposta sismica di un terreno ad un terremoto dipende dalle modalità di genesi e propagazione del segnale sismico e dalle caratteristiche litologiche e morfologiche locali (Faccioli, 1986; Lanzo e Silvestri, 1999). Al fine di comprendere meglio il modo in cui le condizioni geologiche influenzano lo scuotimento sismico, occorre caratterizzare il sito acquisendo nuovi dati con un rilievo di campagna, raccogliendo informazioni bibliografiche e soprattutto organizzando successivamente tutto il materiale a disposizione per quel sito in modo semplice e standardizzato. Con questo obiettivo, è stata messa a punto una scheda "geologica" per la valutazione dei possibili effetti locali nei siti di ubicazione di singoli edifici (Compagnoni et al., 2009a,b), che consente una descrizione qualitativa ed una quantificazione semplificata dei parametri che delineano le caratteristiche geologiche, geomorfologiche, geotecniche e geofisiche del sito esaminato. Quale strumento in grado di sintetizzare tutte le informazioni qualitative e quantitative disponibili per il sito di ubicazione di un qualsiasi bene monumentale e/o archeologico, la scheda diviene così una sorta di “carta di identità geologica” del sottosuolo di quel bene. La scheda può essere ben integrata nelle analisi di rischio sismico e nei diversi livelli di approfondimento previsti dagli studi di microzonazione sismica. Infatti, utilizzando i soli dati qualitativi, si rendono possibili considerazioni integrabili negli studi di I livello. Se alle informazioni qualitative si associano anche analisi sui dati quantitativi in essa contenuti, la scheda può costituire una base di partenza per studi di II e III livello, agevolando la realizzazione di un modello litotecnico del sottosuolo, sul quale eseguire analisi numeriche di risposta sismica locale. Inoltre, la scheda costituisce uno strumento da affiancare efficacemente alle specifiche schede ingegneristiche di vulnerabilità e danno/agibilità messe a punto per le diverse tipologie strutturali (edifici ordinari e beni monumentali). Nelle pagine che seguono viene descritta la sua struttura ed illustrati i risultati ottenuti dalla sua sperimentazione per il sito campione del Tempio di Antonino e Faustina – Chiesa di San Lorenzo in Miranda, ubicato all’interno del Foro Romano.
    Description: Published
    Description: 4.1. Metodologie sismologiche per l'ingegneria sismica
    Description: reserved
    Keywords: geological form ; monumental heritage ; archeological heritage ; seismic response ; roman forum ; site effects ; amplification effects ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology ; 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk ; 05. General::05.02. Data dissemination::05.02.02. Seismological data ; 05. General::05.03. Educational, History of Science, Public Issues::05.03.99. General or miscellaneous ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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  • 3
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    Geological events during the Holocene: an overview for Northern Europe and the Mediterranean (2012)
    Samperi Editore
    Details
    Publication Date: 2017-04-04
    Description: The Holocene is the most recent geological epoch spanning from about 11700 years ago to the present day. The most important human civilizations appeared during the Holocene. From the Holocene onwards, environmental changes, and the hazards associated with them, became extremely important for their impact on historical events, in some cases blending with humanity’s vicissitudes and influencing the rise and decline of civilizations. This paper summarises the geological and climatic conditions of Northern Europe during the Holocene and tries to determine whether or not they support the hypothesis formulated by Felice Vinci (Vinci, 2003) about the migration of Baltic populations towards the Mediterranean in the Bronze Age at the end of the “climatic optimum” (Houghton et al., 1990; Rohling & De Rijk, 1999). This study presents data on glacio-eustatic changes and on isostatic uplift together with information on probable tsunamis that occurred in the North Atlantic, North Sea, Scandinavia and the Baltic Sea. Moreover, some data on catastrophic events that affected the Mediterranean region are reported, because these catastrophes could have favoured the settlement of “people coming from the sea” that took advantage of the demographic and socio-economic weakening of indigenous populations (Driessen, 2002). The paper aims to provide geological and palaeogeographic constraints to the hypotheses formulated by Felice Vinci on the migration of Scandinavians towards the Mediterranean. The data analysed have been collected from the available scientific literature (see references). The amount of information available for each geological phenomenon is vast and sometimes theories developed from the same data are in conflict. The comparison between the Mediterranean and the Baltic areas (one of which could have been the theatre of the Homeric events) will be useful to find evidence of geological phenomena within the Homeric texts, giving useful indications to better understand where the poems are set or at least to provide interesting discussion points related to Felice Vinci’s hypothesis (Vinci 2003).
    Description: Published
    Description: 179-197
    Description: 3.10. Storia ed archeologia applicate alle Scienze della Terra
    Description: open
    Keywords: Geology ; Holocene ; Northern Europe ; Mediterranean ; Earthquakes ; Volcanoes ; Ice age ; Tides ; Tsunami ; Glacio-eustatism ; Seismicity ; Uplift ; Submarine landslides ; 04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous ; 04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology ; 04. Solid Earth::04.08. Volcanology::04.08.99. General or miscellaneous ; 05. General::05.02. Data dissemination::05.02.99. General or miscellaneous ; 05. General::05.02. Data dissemination::05.02.02. Seismological data ; 05. General::05.02. Data dissemination::05.02.03. Volcanic eruptions ; 05. General::05.08. Risk::05.08.99. General or miscellaneous ; 05. General::05.09. Miscellaneous::05.09.99. General or miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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  • 4
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    The seismic microzonation of level 3 of Sant’Agata Fossili (northern Italy) based on a multidisciplinary approach (2015)
    Details
    Publication Date: 2017-04-04
    Description: In this paper the results of a detailed seismic microzonation, performed at Sant’Agata Fossili (Piemonte region, northern Italy) are presented. We study the local seismic response of this small village using a level 3, that is the most accurate level following the Italian code of seismic microzonation. The activity steps consist in a gradual widening of knowledge of the different aspects of the amplification phenomena. A multidisciplinary approach has been performed to obtain the local seismic response: including a study of local geology, geophysical and geotechnical characterization of the lithologies, and numerical and experimental analyses. We finally compare the obtained elastic response spectra to the prescribed spectra of the Italian Building Code (in Italian: Norme Tecniche per le Costruzioni). Our results show the geologic and geophysical differences of the subsoil, that produce different local seismic response in terms of amplification factors and acceleration response spectra.
    Description: Published
    Description: S0189
    Description: 3T. Pericolosità sismica e contributo alla definizione del rischio
    Description: 5T. Sorveglianza sismica e operatività post-terremoto
    Description: JCR Journal
    Description: open
    Keywords: Seismic microzoning ; Amplification factors ; Elastic acceleration response spectra ; Seismic refraction ; Electrical resistivity tomography ; HVSR ; MASW ; Down-Hole ; Italian Building Code ; 04. Solid Earth::04.06. Seismology::04.06.04. Ground motion ; 04. Solid Earth::04.06. Seismology::04.06.05. Historical seismology ; 04. Solid Earth::04.06. Seismology::04.06.06. Surveys, measurements, and monitoring ; 04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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