Damage seismic scenarios for Angra do Heroísmo, Azores (Portugal)

“…Cases of recent urban resilience studies can be cited as the one carried out by Ferreira (2017) for the city center of Horta (Portugal). Other European cities have benefited from studies of seismic risk and buildings vulnerability assessment, such as, Angra do Heroísmo by Veludo et al (2013) and Lisbon by Lamego et al (2016). In Algeria, since the 2003 Boumerdes earthquake (Ms = 6.3), seismic vulnerability assessment studies of buildings throughout some large cities of Algeria have been carried: such as those done for Algiers by Farsi and Lazzali, 2003;Amina et al, 2010;Novelli et al, 2015, for Constantine city Boukri et al, 2014;Benhamouche, 2014;Guettiche et al, 2017, for Oran city by Senouci et al (2013) and for Annaba city by Athmani et al (2015).…”

Section: Introductionmentioning

confidence: 99%

Buildings Vulnerability Assessment and Damage Seismic Scenarios at Urban Scale: Application to Chlef City (Algeria)

et al. 2018

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Seismic scenarios are tools used to assess seismic risk at the city level. This allows the assessment of the vulnerability of exposed elements to risk (buildings, bridges, etc.). In the case of Chlef city (formerly El Asnam), this evaluation type proves to be useful given the seismic hazard to which it is exposed and the building park size. This city has been shaken in the past by several earthquakes including that of the El Asnam 1980 (Ms = 7.3), which caused hundreds of casualties and destroyed 70% of the city. In this paper, a seismic vulnerability assessment at urban scale and three seismic damage scenarios are simulated using the "RISK-UE" methodology. First, a recreation of the El Asnam 1980 earthquake, considering the urban conditions of the 1980s, is done. A difference of about 12% between observed and simulated damage is observed. Secondly, two senarios considering the current urban conditions are simulated then, vulnerabilty curves are developed. The simulations purpose is to detect the most vulnerable typologies and districts in the event of a similar earthquake and to provide decision support elements to the local seismic risk manager. The results show a structural damage decrease compared to the 1980 urban conditions.

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“…It is then required to adopt and simulate potential earthquake scenarios [3] that may affect an urban area and its surroundings, which will allow to have a first idea on the spatial distribution of the damage and their extent, and to elaborate an action plan to confine the human and economic losses to their minimal level [1].…”

Section: Introductionmentioning

confidence: 99%

Seismic Vulnerability Appraisal According to the Algerian Building Context

Boukri¹,

Farsi²,

Mébarki

et al. 2017

WIT Transactions on the Built Environment

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This contribution focuses on the adaptation and application of RADIUS methodology (Risk Assessment Tools for Diagnosis of Urban Areas Against Seismic Disaster) integrated with a Geographic Information System (GIS) to the Algerian context for the seismic vulnerability evaluation in urban areas potentially exposed to earthquakes. Within this framework, this application aims to perform a probable earthquake scenario in the urban centre of Constantine city, located at the North-East of Algeria, which will allow the buildings seismic damage estimation of this city. For that, an extensive inventory of almost 31,000 buildings was carried out. The simulation of the expected building seismic damage and the generated GIS damage maps provides a predictive evaluation of the damage that can occur due to a potential earthquake near to Constantine city.The theoretical forecasts are considered important for decision makers in order to reduce building vulnerability, to take adequate preventive measures and to develop suitable strategies for prevention and emergency management plans to reduce the losses. They can also help to identify the most damaged areas in the early moments following an earthquake to take the adequate emergency measures.

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Damage seismic scenarios for Angra do Heroísmo, Azores (Portugal)

Cited by 10 publications

References 30 publications

The role of source and site effects on structural failures due to Azores earthquakes

The role of source and site effects on structural failures due to Azores earthquakes

Buildings Vulnerability Assessment and Damage Seismic Scenarios at Urban Scale: Application to Chlef City (Algeria)

Seismic Vulnerability Appraisal According to the Algerian Building Context

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