scholarly journals Tsunami risk assessments in Messina, Sicily – Italy

2012 ◽  
Vol 12 (1) ◽  
pp. 151-163 ◽  
Author(s):  
A. Grezio ◽  
P. Gasparini ◽  
W. Marzocchi ◽  
A. Patera ◽  
S. Tinti

Abstract. We present a first detailed tsunami risk assessment for the city of Messina where one of the most destructive tsunami inundations of the last centuries occurred in 1908. In the tsunami hazard evaluation, probabilities are calculated through a new general modular Bayesian tool for Probability Tsunami Hazard Assessment. The estimation of losses of persons and buildings takes into account data collected directly or supplied by: (i) the Italian National Institute of Statistics that provides information on the population, on buildings and on many relevant social aspects; (ii) the Italian National Territory Agency that provides updated economic values of the buildings on the basis of their typology (residential, commercial, industrial) and location (streets); and (iii) the Train and Port Authorities. For human beings, a factor of time exposition is introduced and calculated in terms of hours per day in different places (private and public) and in terms of seasons, considering that some factors like the number of tourists can vary by one order of magnitude from January to August. Since the tsunami risk is a function of the run-up levels along the coast, a variable tsunami risk zone is defined as the area along the Messina coast where tsunami inundations may occur.

2021 ◽  
Vol 331 ◽  
pp. 04006
Author(s):  
Leli Honesti ◽  
Meli Muchlian

A tsunami hazard is an adverse event that causes damage to properties and loss of life. The problem in assessing a tsunami risk zone for a small area is significant, as available tsunami inundation zone data does not give detailed information for tsunami inundation and run-up in every nested grid. Hence, this study aims to establish a tsunami risk map in the Pasir Jambak sub-district, Padang, Indonesia. The map was carried out in every nested grid point of the area and on a large scale (1:5,000). The TUNAMI N3 program was used for the simulation of the tsunami inundation. A tsunami assessment was made through simulations in nine scenarios of fault parameter data for Sipora block earthquakes. The result of the study provides a tsunami inundation map. Furthermore, this tsunami inundation map can be used for communities, local authorities, government, and others for many studies, and decision-makers can come up with mitigation plans for a small study area.


2011 ◽  
Vol 11 (12) ◽  
pp. 3107-3123 ◽  
Author(s):  
A. Muhari ◽  
F. Imamura ◽  
S. Koshimura ◽  
J. Post

Abstract. This paper describes the examination of three practical tsunami run-up models that can be used to assess the tsunami impact on human beings in densely populated areas. The first of the examined models applies a uniform bottom roughness coefficient throughout the study area. The second uses a very detailed topographic data set that includes the building height information integrated on a Digital Elevation Model (DEM); and the third model utilizes different bottom roughness coefficients, depending on the type of land use and on the percentage of building occupancy on each grid cell. These models were compared with each other by taking the one with the most detailed topographic data (which is the second) as reference. The analysis was performed with the aim of identifying how specific features of high resolution topographic data can influence the tsunami run-up characteristics. Further, we promote a method to be used when very detailed topographic data is unavailable and discuss the related limitations. To this purpose we demonstrate that the effect of buildings on the tsunami flow can be well modeled by using an equivalent roughness coefficient if the topographic data has no information of building height. The results from the models have been utilized to quantify the tsunami impact by using the tsunami casualty algorithm. The models have been applied in Padang city, Indonesia, which is one of the areas with the highest potential of tsunami risk in the world.


2021 ◽  
Author(s):  
Elizabeth Trejo Gomez ◽  
Francisco Javier Núñez-Cornú

Abstract The Jalisco region in western Mexico is one of the most seismically active in the country. The city of Puerto Vallarta is located at Bahía de Banderas on the northern coast of Jalisco., Currently there exists a Seismic Gap in the Northern coast of Jalisco (Vallarta Gap). Historically seismogenic tsunamis have affected the coast of Jalisco. In this work, the risk due to a local tsunami in the city of Puerto Vallarta is a function of the interaction between hazard and vulnerability. We model the tsunami hazard, generation and propagation, using the initial conditions for a great earthquake (Mw ≥ 8.0) similar to those that occurred in 1787 at Oaxaca and in 1995 at Tenacatita Bay, Jalisco. Vulnerability is estimated with available data for the years 2010–2015 with sociodemographic variables and the location of government, commercial or cultural facilities. The area with the highest vulnerability and risk is between the valleys of the Ameca and Pitillal Rivers, extending to a distance greater than 5.1 km from the coastline and affecting an area of 30.55 km2. This study does not consider the direct damage caused by the tsunamigenic earthquake and aftershocks; it assumes that critical buildings in the region, mostly hotels, would not collapse after the earthquake and could serve as a refuge for its users. The first (It) tsunami wave arrives to Puerto Vallarta (Cuale) 19 min after the earthquake with a height (Hi) of 3.7 m, the Run Up (At) arrives 74 min after earthquake with a height (Hr) of 5.6 m.


2011 ◽  
Vol 1 (32) ◽  
pp. 26 ◽  
Author(s):  
Torsten Schlurmann ◽  
Widjo Kongko ◽  
Nils Goseberg ◽  
Danny Hilman Natawidjaja ◽  
Kerry Sieh

Near-field tsunami propagation both in shallow water environments and bore-like wave propagation on land are conducted in this study to obtain fundamental knowledge on the tsunami hazard potential in the city of Padang, Western Sumatra, Republic of Indonesia. As the region proves a huge seismic moment deficit which has progressively accumulated since the last recorded major earthquakes in 1797 and 1833, this investigation focuses on most reasonable seismic sources and possibly triggered nearshore tsunamis in order to develop upgraded disaster mitigations programs in this densely-populated urban agglomeration located on the western shore of Sumatra Island. Observations from continuous Global Positioning Satellite (cGPS) systems and supplementary coral growth studies confirm a much greater probability of occurrence that a major earthquake and subsequent tsunami are likely to strike the region in the near future. Newly surveyed and processed sets of geodata have been collected and used to progress most plausible rupture scenarios to approximate the extent and magnitudes of a further earthquake. Based upon this novel understanding, the present analysis applies two hydronumerical codes to simulate most probable tsunami run-up and subsequent inundations in the city of Padang in very fine resolution. Run-up heights and flow-depths are determined stemming from these most plausible rupture scenarios. Evaluation of outcome and performance of both numerical tools regarding impacts of surge flow and bore-like wave fronts encountering the coast and inundating the city are thoroughly carried out. Results are discussed not only for further scientific purposes, i.e. benchmark tests, but also to disseminate main findings to responsible authorities in Padang with the objective to distribute the most probable dataset of plausible tsunami inundations as well as to address valuable insights and knowledge for effective counter measures, i.e. evacuation routes and shelter building. Following evacuation simulations based on rational assumptions and simplifications reveal a most alerting result as about 260.000 people are living in the highly exposed potential tsunami inundation area in the city of Padang of which more than 90.000 people will need more than 30 min. to evacuate to safe areas.


Apeiron ◽  
2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Sara Diaco

AbstractThe present study provides an analysis of Socrates’ account of the first polis in Republic 2 as a thought experiment and draws attention to the fact that Socrates combines both explanatory and evaluative aspects in his scenario. The paper further shows how the analysis of the city of pigs as a thought experiment can explain the lack of pleonexia by saving both the letter of the text, according to which there are no “pleonectic” desires in the city of pigs, and the fact that the first polis is nonetheless concerned with human beings. For, in contrast to the account offered by Glaucon earlier in Book 2, Socrates highlights our needs and lack of self-sufficiency as well as our compatibility with an advantageous and happy life in a community.


Author(s):  
Amir Ikram ◽  
Muhammad Fiaz ◽  
Asif Mahmood ◽  
Ayyaz Ahmad ◽  
Rafiya Ashfaq

Branding activities provide space to create internal culture, processes and a kind of organizational system which allows employees to use their abilities to their maximum. Internal corporate social responsibility (CSR) activities of an organization increase employee commitment, which ultimately enhances employee retention. There is a need to explore internal branding in relation to internal CSR for the sake of managing employee retention. Therefore, the study empirically examines the underlying associations among internal branding, employee retention and internal CSR. The data are collected from higher education institutions operating in the city of Lahore, Pakistan. The sample size was 377 faculties belonging to both private and public sector higher education institutions. The analysis is based on variance-based structural equation modeling (PLS-SEM). The findings reveal that the internal branding practices have a significant impact on employee’s intention to stay within the organization, and intrasample analysis suggests few comprehensible variations with respect to private and public academic institutions. The research article also provides insights to faculty, academic entrepreneurs and marketers, especially those belonging to developing countries and facing issues of branding and employee retention.


2021 ◽  
pp. 089124322110292
Author(s):  
Sahar Shakiba ◽  
Omid Ghaderzadeh ◽  
Valentine M. Moghadam

Informed by sociological standpoint, intersectional, and gender regime theories, we examine perceptions of a diverse sample of Iranian Kurdish women in the city of Sanandaj about their legal status and social positions. We find perceptions of injustice, oppression, male control, and lack of opportunity associated with both the family and broader society. Kurdish women are socially located in structures and institutions of both private and public patriarchy. At the same time, their growing educational attainment and knowledge of possibilities for change enable them not only to articulate grievances but also to aspire to, and sometimes engage in, collective action for women’s rights. By focusing on an under-studied region, this article contributes to the wider literature on Kurdish women, underscores the continued salience of intersectional and standpoint approaches, and expands gender regime theorizing beyond Western cases.


2021 ◽  
Author(s):  
Chloé Duffaut ◽  
Nathalie Frascaria-Lacoste ◽  
Pierre-Antoine Versini

<p>Hydro-meteorological risks are increasing and this could be due to global changes. These risks are particularly important in the urban context where most human beings live. Indeed, the impervious surfaces present in cities increase the risk of flooding, for example. Nature-Based Solutions can help to reduce these risks by creating permeable soils or storing water while promoting biodiversity. In this context, it is essential to understand what hinders the development and sustainability of these Nature-based Solutions in the city and what could help to deploy them on a large scale. For this purpose, various professionals working on Nature-Based Solutions in the city in France, were interviewed between 2020 and 2021, both in the academic and operational sectors, or even at the interface between the two: researchers in ecology or hydrology, IUCN (International Union for Conservation of Nature) project manager, project managers at the Regional Biodiversity Agency, director and natural environment manager of a watershed union, agro-economists engineer among others. They were asked what are the barriers and potential opportunities for Nature-Based Solutions implementation and sustainability in city. By analysing their answers, it emerges that the obstacles are more often cultural, political or financial than technical. The potential levers often mentioned are education and awareness-raising at all levels, especially for elected officials and the general public. Regulations such as the PLU (Local Urban Plan) and new funding for more natural spaces in the city also seem to be means of promoting Nature-based Solutions in urban areas. These interviews with diverse professionals directly involved in Nature-Based Solutions in cities allow to give real courses of action to be taken to democratize these Solutions throughout the French territory, or even internationally, and therefore ultimately reduce the risks of hydro-meteorology. This is one of the objectives of the French ANR project EVNATURB (Assessment of ecosystem performance of a renaturation of the urban environment), in which this study has been carried out.</p>


2018 ◽  
Vol 54 (2) ◽  
pp. 131-148 ◽  
Author(s):  
Johanna Mannergren Selimovic

How do we identify and understand transformative agency in the quotidian that is not contained in formal, or even informal structures? This article investigates the ordinary agency of Palestinian inhabitants in the violent context of the divided city of Jerusalem. Through a close reading of three ethnographic moments I identify creative micropractices of negotiating the separation barrier that slices through the city. To conduct this analytical work I propose a conceptual grid of place, body and story through which the everyday can be grasped, accessed and understood. ‘Place’ encompasses the understanding that the everyday is always located and grounded in materiality; ‘body’ takes into account the embodied experience of subjects moving through this place; and ‘story’ refers to the narrative work conducted by human beings in order to make sense of our place in the world. I argue that people can engage in actions that function both as coping mechanisms (and may even support the upholding of status quo), and as moments of formulating and enacting agential projects with a more or less intentional transformative purpose. This insight is key to understanding the generative capacity of everyday agency and its importance for the macropolitics of peace and conflict.


2019 ◽  
Vol 35 (6) ◽  
Author(s):  
Barbara Héllen De Almeida França ◽  
Isael de Sousa Sá ◽  
Naicy Maria Alencar ◽  
Yago Gabriel da Silva Barbosa ◽  
Jessica Sebastião Dos Santos ◽  
...  

This study aimed to analyze the knowledge about some zoonosis in a private school in the city of Bom Jesus-PI, Brazil, through the application of questionnaires intended for primary school students, teachers and students´ parents. Zoonosis are transmissible illnesses in natural conditions between the animals and the human beings, and knowledge about them does not always reach the population exposed to constant risks, and it is necessary to plan health education actions in these areas. On the analysis of surveys noted significant numbers in relation to lack of knowledge on the part of interviewed in all groups. In relation to cutaneous larva migrans 37 (46,83%) of the students answered don´t know which factors were associated to the contamination, about to the prevention, 35 (44,30%) didn´t know the measures to be taken. Relating to Leishmaniasis, observed that 43 (54,43%) of the students have already heard about the disease, 37 (46,83%) answered that the dog is the responsible for transmitting and 34 (43,03%) the mosquito. In relation to the prevention, 36 (45,56%) answered combat to the mosquitoes, 35 (44,30%) using repellents, protection screens in windows and use of mosquito nets, as long as 07 (8,86%) didn´t know any prevention measure. In the amount of 79 students that answered the survey, 93,67% affirmed don´t have knowledge about giardiasis and 74,68% answered don´t know about how occurs the transmission about this zoonosis. Therefore, there is a need to carry out works that aim to provide this information to the population, especially the children because they are considered more susceptible as well as agents disseminating this information.


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