A5028549726- earthquake and tectonic studies
- Geotechnical Engineering and Soil Mechanics
- Geotechnical Engineering and Underground Structures
- Seismic Waves and Analysis
- Seismology and Earthquake Studies
- Geotechnical Engineering and Soil Stabilization
- Landslides and related hazards
- Grouting, Rheology, and Soil Mechanics
- Seismic Imaging and Inversion Techniques
- Geological formations and processes
- 3D Surveying and Cultural Heritage
- Rock Mechanics and Modeling
- Geophysical Methods and Applications
- Geotechnical Engineering and Analysis
- Geological Modeling and Analysis
- Earthquake Detection and Analysis
- Seismic Performance and Analysis
- Urban Planning and Valuation
- Geological Formations and Processes Exploration
- Geology and Paleoclimatology Research
- Maritime and Coastal Archaeology
- Image Processing and 3D Reconstruction
- Rangeland Management and Livestock Ecology
- Plant Ecology and Taxonomy Studies
- Paleontology and Stratigraphy of Fossils
Istituto Nazionale di Geofisica e Vulcanologia
2019-2025
University of Ferrara
2009-2019
Regione Emilia-Romagna
2017
European Committee for Standardization
2017
Terra
2012
Abstract This paper presents a comprehensive geological and geotechnical study of the whole area affected by liquefaction following 2012 Emilia earthquakes, including all available information from field reconnaissance surveys, in situ tests, laboratory analyses. The compilation was performed at 120 liquefied sites to verify validate reliability charts alluvial sediments, assess induced seismic sequence plain. results reveal wide range grain sizes (from clean sands sandy silts) compositional...
SUMMARY On 29 December 2020, a shallow earthquake of magnitude Mw 6.4 struck northern Croatia, near the town Petrinja, more than 24 hr after strong foreshock (ML 5). We formed reconnaissance team European geologists and engineers, from Slovenia, France, Italy Greece, rapidly deployed in field to map evidence coseismic environmental effects. In epicentral area, we recognized surface deformation, such as tectonic breaks along source at surface, liquefaction features (scattered fluvial plains...
The 2020 M W 6.4 Petrinja (Croatia) earthquake induced extensive and diversified liquefaction lateral spreading phenomena within ≈ 20 km radius from the epicenter. A detailed investigation field Unmanned Aerial Vehicle (UAV) surveys was carried out by a European researcher team (EUTeam) in months following mainshock. This work focuses on 61 surveyed sites: observations were coupled with laboratory tests for soil classification sediment composition. adopted procedure provides an in-depth...
Soil liquefaction can result in significant settlement and reduction of load-bearing capacity. Moreover, the increase accumulation pore pressure during an earthquake its post-seismic dissipation generate permanent deformations settlements. The quantitative evaluation post-liquefaction settlements is extreme importance for engineering purposes, i.e. earthquake-resistant design new buildings safety existing ones. Quantifying extent these phenomena is, however, rather difficult. Uncertainties...
Research Article| January 11, 2019 Sand Liquefaction Induced By a Blast Test: New Insights On Source Layer and Grain-Size Segregation Mechanisms (Late Quaternary, Emilia, Italy) Daniela Fontana; Fontana 1Department of Chemical Geological Sciences, University Modena Reggio Modena, Italy Search for other works by this author on: GSW Google Scholar Sara Amoroso; Amoroso 2Istituto Nazionale di Geofisica e Vulcanologia, L'Aquila, Luca Minarelli; Minarelli 3Geotema s.r.l., Spin-off Ferrara, Marco...
The dynamic cone penetration test (DPT) developed in China has been correlated with liquefaction resistance of gravelly soils based on field performance data from the Mw7.9 Wenchuan earthquake. With a diameter 74 mm, DPT would be less sensitive to gravel size particles than SPT or CPT and could viable assessment tool depending percentage. In this study, is evaluated using four soundings two hammer energies shear wave velocity (VS) measurements Avasinis, Italy, where sand liquefied 1976...
During the last decades, liquefaction damages induced by earthquakes have underlined importance of identifying effective soil improvement techniques for mitigation purposes. Vibratory methods, such as rammed aggregate piers, are commonly used to densify sands and silty sands, erroneously neglecting influence lateral stress. This paper presents results a series case studies carried out using piers in Christchurch (New Zealand), Boca de Briceño (Ecuador), Bondeno (Italy) following 2010–2011...
<p>In May 2012, two moderate (-to-strong) earthquakes that were associated with a noticeable aftershock sequence affected the eastern sector of Po Plain, Italy, in correspondence buried portion Apennines thrust belt. The Provinces Ferrara, Modena and Bologna (Emilia Romagna Region), Mantua (Lombardy Rovigo (Veneto Region) to different extents. first shock (Ml 5.9 according Istituto Nazionale di Geofisica e Vulcanologia (INGV; National Institute Geophysics Volcanology), Mw 6.1 US...
The 2012 earthquakes sequence stroke a wide area of the alluvial plain in Emilia-Romagna Region and triggered new research interest on role subsurface stratigraphic architecture petrophysical property distribution modulation local seismic effects. Few direct shear wave velocity V_S data were however available below depth 50m. only measurements obtained from an anticline area, characterized by reduced thickness peculiar sedimentary facies, hardly representative majority subsurface. study...
In May 2012, two earthquakes (Mw 6.1 and 5.9) affected the Po Plain, Italy. The strongest shock produced extensive secondary effects associated with liquefaction phenomena. Few weeks after earthquakes, an exploratory trench was excavated across a levee of palaeo-Reno reach, where system aligned ground ruptures observed. investigated site well preserves geomorphic expression fluvial body that mainly formed in fifteenth to sixteenth centuries as historical sources radiometric data testify....
The influence of the fines content on cyclic resistance has been widely studied and importance determination this parameter from different geotechnical tests underlined for liquefaction assessments. Geotechnical evidences local investigations may however not completely reflect lateral subsoil variability, which is important identification localized potential phenomena. Geophysical can be useful in imaging these variations related variability. In study calibration existing correlations with...
Following the 2012 Emilia-Romagna seismic sequence, widespread liquefaction of silty sands was observed, providing opportunity to enhance our knowledge influence fines content on hazard and mitigation works. This paper presents results a thorough geotechnical investigation performed in connection with full-scale controlled blast tests Bondeno, Italy, small village that suffered 2012. Piezocone (CPTU) dilatometer (SDMT) were natural improved soils after rammed aggregate pier (RAP) treatment...
Abstract. This paper illustrates the activities of EMERSITO, an emergency task force Istituto Nazionale di Geofisica e Vulcanologia (INGV, Italy) devoted to site effects and microzonation studies, during seismic sequence that occurred close Adriatic coast in Central Italy since November 9th, 2022, following Mw 5.5 mainshock localised sea. In particular, we describe steps led deployment a temporary network stations urban area Ancona, main city coastline. Data collected by Ancona...
Pastures are strongly affected by local environmental variables in terms of their species richness, plant composition and herbage production. A multi-site monitoring study was conducted over three years to investigate the influence morphoclimatic factors on seasonal variations dry matter (DM) yield from Karst pastures. Seven sites located Italian Slovenian regions were investigated that differed geological geomorphological features, as well soil types. At each site, daily DM (kg ha-1 d-1)...
Soil liquefaction due to an earthquake can lead permanent soil deformation and reduction of load-bearing capacity that in turn could act on building stability. Since a quantitative evaluation post-liquefaction settlements is often very difficult, field scale tests, carried out under controlled conditions, such as blast are used perform correct analysis the phenomena. Among significant parameters related test, there geometric ones, i.e. extension area affected by blast-induced corresponding...
&lt;p&gt;Earthquakes and related coseismic effects at the surface, both primary secondary, such as liquefaction lateral spreading, can impact humans due to induced economic or social disruptions (e.g. slope, bridge building foundation failures, flotation of buried structures). In this respect, it results interest map evidences soon after an earthquake. On 29th December 2020, a major earthquake (Mw 6.4) occurred in Croatia, close Petrinja, 45 km south Zagreb, generating widespread...
Terrestrial laser scanning (TLS) and drone-based structure-from-motion (SfM) photogrammetry allowed the study of soil deformations due to blast-induced liquefaction during an experiment carried out on 4 June 2018. The research aimed at both evaluating measurement quality estimating rammed aggregate piers (RAPs) effectiveness in mitigating effects liquefaction. These mainly consist subsidence deposits ejected extruded materials. comparison between multitemporal 3D models provided surface...
In this work we perform a detailed passive seismic survey in proximity of shear zone the Introdacqua area, central Italy, around permanent station IV.INTR Italian network RSN. This is located on prominent ridge (width about 200 m, relative height 240 m), and affected by clear directional amplification between 1 3 Hz, with maximum along N160&#176; azimuth, as shown HVSRs calculated using both events ambient noise recordings (CRISP database, www.crisp.ingv.it). effect was confirmed 11...