The Campotosto Seismic Gap in Between the 2009 and 2016-2017 Seismic Sequences of Central Italy and the Role of Inherited Lithospheric Faults in Regional Seismotectonic Settings

Tectonics ◽  
2018 ◽  
Vol 37 (8) ◽  
pp. 2425-2445 ◽  
Author(s):  
E. Falcucci ◽  
S. Gori ◽  
C. Bignami ◽  
G. Pietrantonio ◽  
D. Melini ◽  
...  
Keyword(s):  
Central Italy ◽  
Seismic Gap ◽  
Seismic Sequences

scholarly journals The Campotosto linkage fault zone between the 2009 and 2016 seismic sequences of central Italy: Implications for seismic hazard analysis

2020 ◽  
Author(s):  
Emanuele Tondi ◽  
Danica Jablonská ◽  
Tiziano Volatili ◽  
Maddalena Michele ◽  
Stefano Mazzoli ◽  
...  
Keyword(s):  
Seismic Hazard ◽  
Fault Zone ◽  
Central Italy ◽  
Seismic Events ◽  
Seismic Gap ◽  
Seismic Zone ◽  
Seismic Sequence ◽  
Geological Evidence ◽  
Seismic Sequences ◽  
Seismogenic Faults

In the last decade central Italy was struck by devastating seismic sequences resulting in hundreds of casualties (i.e., 2009-L′Aquila moment magnitude [Mw] = 6.3, and 2016-Amatrice-Visso-Norcia Mw max = 6.5). These seismic events were caused by two NW-SE−striking, SW-dipping, seismogenic normal faults that were modeled based on the available focal mechanisms and the seismic moment computed during the relative mainshocks. The seismogenic faults responsible for the 2009-L′Aquila Mw = 6.3 (Paganica Fault—PF) and 2016-Amatrice-Visso-Norcia Mw max = 6.5 (Monte Vettore Fault—MVF) are right-stepping with a negative overlap (i.e., underlap) located at the surface in the Campotosto area. This latter was affected by seismic swarms with magnitude ranging from 5.0 to 5.5 during the 2009 seismic sequence and then in 2017 (i.e., a few months later than the mainshocks related with the 2016 seismic sequence). In this paper, the seismogenic faults related to the main seismic events that occurred in the Campotosto Seismic Zone (CSZ) were modeled and interpreted as a linkage fault zone between the PF and MVF interacting seismogenic faults. Based on the underlap dimension, the seismogenic potential of the CSZ is in the order of Mw = 6.0, even in the case that all the faults belonging to the zone were activated simultaneously. This has important implications for seismic hazard assessment in an area dominated by the occurrence of a major NW-SE−striking extensional structure, i.e., the Monte Gorzano Fault (MGF). Mainly due to its geomorphologic expression, this fault has been considered as an active and silent structure (therefore representing a seismic gap) able to generate an earthquake of Mw max = 6.5−7.0. However, the geological evidence provided with this study suggests that the MGF is of early (i.e., pre- to syn-thrusting) origin. Therefore, the evaluation of the seismic hazard in the Campotosto area should not be based on the geometrical characteristics of the outcropping MGF. This also generates substantial issues with earthquake geological studies carried out prior to the recent seismic events in central Italy. More in general, the 4-D high-resolution image of a crustal volume hosting an active linkage zone between two large seismogenic structures provides new insights into the behavior of interacting faults in the incipient stages of connection.

scholarly journals The Role of Faults in Groundwater Circulation before and after Seismic Events: Insights from Tracers, Water Isotopes and Geochemistry

Water ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1499
Author(s):  
Davide Fronzi ◽  
Francesco Mirabella ◽  
Carlo Cardellini ◽  
Stefano Caliro ◽  
Stefano Palpacelli ◽  
...  
Keyword(s):  
Preferential Flow ◽  
Central Italy ◽  
Tracer Tests ◽  
Integrated Approach ◽  
Fault System ◽  
Tectonic Structures ◽  
Fault Systems ◽  
Isotopic Analyses ◽  
Before And After

The interaction between fluids and tectonic structures such as fault systems is a much-discussed issue. Many scientific works are aimed at understanding what the role of fault systems in the displacement of deep fluids is, by investigating the interaction between the upper mantle, the lower crustal portion and the upraising of gasses carried by liquids. Many other scientific works try to explore the interaction between the recharge processes, i.e., precipitation, and the fault zones, aiming to recognize the function of the abovementioned structures and their capability to direct groundwater flow towards preferential drainage areas. Understanding the role of faults in the recharge processes of punctual and linear springs, meant as gaining streams, is a key point in hydrogeology, as it is known that faults can act either as flow barriers or as preferential flow paths. In this work an investigation of a fault system located in the Nera River catchment (Italy), based on geo-structural investigations, tracer tests, geochemical and isotopic recharge modelling, allows to identify the role of the normal fault system before and after the 2016–2017 central Italy seismic sequence (Mmax = 6.5). The outcome was achieved by an integrated approach consisting of a structural geology field work, combined with GIS-based analysis, and of a hydrogeological investigation based on artificial tracer tests and geochemical and isotopic analyses.

scholarly journals Otolaryngology activity in two hospitals in northern and central Italy differently affected by COVID-19 pandemic

2021 ◽  
Vol 104 (2) ◽  
pp. 003685042199848
Author(s):  
Antonio Minni ◽  
Francesco Pilolli ◽  
Massimo Ralli ◽  
Niccolò Mevio ◽  
Luca Roncoroni ◽  
...  
Keyword(s):  
Intensive Care ◽  
Severe Acute Respiratory Syndrome ◽  
Intensive Care Units ◽  
Healthcare System ◽  
Central Italy ◽  
Northern Italy ◽  
Public Hospitals ◽  
Geographical Differences ◽  
Italian Regions

The Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) pandemic had a significant impact on the Italian healthcare system, although geographical differences were present; regions in northern Italy have been the most severely affected while regions in the south of the country were relatively spared. Otolaryngologists were actively involved in the management of the pandemic. In this work, we analyzed and compared the otolaryngology surgical activity performed during the pandemic in two large public hospitals located in different Italian regions. In northern Italy, otolaryngologists were mainly involved in performing surgical tracheotomies in COVID-19 positive patients and contributed to the management of these patients in intensive care units. In central Italy, where the burden of the infection was significantly lower, otolaryngologists focused on diagnosis and treatment of emergency and oncology patients. This analysis confirms the important role of the otolaryngology specialists during the pandemic, but also highlights specific differences between two large hospitals in different Italian regions.

The End of Sharecropping in Central Italy after 1945: The Role of Mechanisation in the Changing Relationship between Peasant Families and Land

Rural History ◽  
2014 ◽  
Vol 25 (2) ◽  
pp. 243-260 ◽  
Author(s):  
STUART OGLETHORPE
Keyword(s):  
Labour Supply ◽  
Labour Force ◽  
Central Italy ◽  
Rural Landscape ◽  
Rapid Decline ◽  
Farming Families ◽  
Political Economic ◽  
The Relationship ◽  
Push Factor

Abstract:This article focuses on the mechanisation of agriculture in central Italy in the thirty years or so after 1945. This provides a particular way of examining the major changes in the rural landscape in this period, especially the end of the sharecropping system. Land in these regions had for centuries been predominantly farmed under sharecropping contracts, but for political, economic, and demographic reasons this system, which had inhibited modernisation, entered a rapid decline. Whereas labour supply had previously exceeded demand, the reverse became the case, allowing sharecropping families more freedom in how they operated. Mechanisation was not a ‘push’ factor, but as the agricultural labour force contracted it was a necessary response. The article uses individual testimony to illustrate how tenant farmers started to work outside the sharecropping contract, some becoming outside contractors with other farms and supplying tractor hire. The mechanisation of agriculture was slow and uneven, but marked an irreversible change in the relationship between farming families and their land.

Wide variability in colorectal cancer screening uptake by general practitioner: Cross-sectional study

2021 ◽  
pp. 096914132110357
Author(s):  
Cecilia Acuti Martellucci ◽  
Maria E Flacco ◽  
Margherita Morettini ◽  
Giusi Giacomini ◽  
Matthew Palmer ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Geographical Area ◽  
Central Italy ◽  
Cross Sectional Study ◽  
Local Health ◽  
Sectional Study ◽  
Cross Sectional ◽  
Crc Screening ◽  
Screening Uptake

Objectives Despite several interventions, colorectal cancer (CRC) screening uptake remains below acceptable levels in Italy. Among the potential determinants of screening uptake, only a few studies analysed the role of general practitioners (GPs). The aim was to evaluate the variation in screening uptake of the clusters of subjects assisted by single GPs. Setting Ancona province, Central Italy. Methods Cross-sectional study, including all residents aged 50–69 years, who were offered the public screening programme with biannual faecal immunochemical tests. Demographic (of all GPs) and screening data (of all eligible residents) for years 2018–2019 were collected from the official electronic datasets of the Ancona Local Health Unit. The potential predictors of acceptable screening uptake, including GP's gender, age, and number of registered subjects, were evaluated using random-effect logistic regression, with geographical area as the cluster unit. Results The final sample consisted of 332 GP clusters, including 120,178 eligible subjects. The overall province uptake was 38.0% ± 10.7%. The uptake was lower than 30% in one-fifth of the GP clusters, and higher than 45% in another fifth. At multivariable analysis, the significant predictors of uptake were younger GP age ( p = 0.010) and lower number of registered subjects ( p < 0.001). None of the GP clusters with 500 subjects or more showed an uptake ≥45%. Conclusions The wide variation across GPs suggests they might substantially influence screening uptake, highlighting a potential need to increase their commitment to CRC screening. Further research is needed to confirm the role of the number of registered subjects.

Central Italian Elite Groups as Aristocratic Houses in the Ninth to Sixth Centuries BCE

2020 ◽  
pp. 25-40
Author(s):  
Matthew C Naglak ◽  
Nicola Terrenato
Keyword(s):  
Iron Age ◽  
Social Systems ◽  
Central Italy ◽  
Ancient World ◽  
Textual Evidence ◽  
New Models ◽  
Material Evidence ◽  
Theoretical Overview ◽  
House Society

This chapter demonstrates the applicability of C. Lévi-Strauss’s “House Society” model for considering the role of kinship in the early moments of state formation and urbanization in Iron Age Latium and Etruria. After a brief theoretical overview of the model, the discussion focuses on two main axioms which are often overlooked in the model’s application to the ancient world: (1) a physical house does not make a social House, and (2) a single House does not make a Society. This is followed by an overview of how material evidence from sites ranging from Vetulonia to Osteria dell’Osa and textual evidence from the Twelves Tables can be interpreted through the lens of a “House Society” to create new models for the development of complex social systems in central Italy.

Beach litter occurrence in sandy littorals: The potential role of urban areas, rivers and beach users in central Italy

2016 ◽  
Vol 181 ◽  
pp. 231-237 ◽  
Author(s):  
Gianluca Poeta ◽  
Luisa Conti ◽  
Marco Malavasi ◽  
Corrado Battisti ◽  
Alicia Teresa Rosario Acosta
Keyword(s):  
Urban Areas ◽  
Potential Role ◽  
Central Italy ◽  
Beach Litter

scholarly journals Lifestyle of a Roman Imperial community: ethnobotanical evidence from dental calculus of the Ager Curensis inhabitants

2019 ◽  
Vol 15 (1) ◽  
Author(s):  
Alessia D’Agostino ◽  
Angelo Gismondi ◽  
Gabriele Di Marco ◽  
Mauro Lo Castro ◽  
Rosaria Olevano ◽  
...  
Keyword(s):  
Juglans Regia ◽  
Central Italy ◽  
Population Based ◽  
Gas Chromatography Mass Spectrometry ◽  
Starch Granules ◽  
Dental Calculus ◽  
Cultural Traditions ◽  
Hemp Fibers ◽  
Animal Resources

Abstract Background The analysis of ancient calcified dental plaque is a powerful archaeobotanical method to elucidate the key role of the plants in human history. Methods In this research, by applying both optic microscopy and gas chromatography mass spectrometry on this matrix, a detailed qualitative investigation for reconstructing the lifestyle of a Roman imperial community of the Ager Curensis (Sabina Tiberina, Central Italy) was performed. Results The detection of animal micro-remains and molecules (e.g., hairs, feather barbules, markers of dairy products), starch granules of several cereals and legumes, pollen (e.g., Juglans regia L., Hedera sp. L.) and other plant micro-debris (e.g., trichome of Olea sp., hemp fibers), and phytochemicals (e.g., Brassicaceae, Lamiaceae herbs, Ferula sp., Trigonella foenum-graecum L., wine, and Humulus lupulus L.) in the dental calculus sample demonstrated that plant-derived foods were regularly consumed together with animal resources. Conclusions This nutritional plan, consistent with the information reported in ancient written texts, suggested that the studied population based its own subsistence on both agriculture and husbandry, probably also including beekeeping and hunting activities. All together, these results represent proofs for the comprehension of food habits, phytotherapeutic practices, and cultural traditions of one of the first Roman settlements in the Sabina Tiberina area.

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