Earthquake vulnerability and seismic risk assessment of urban areas in high seismic regions: application to Chania City, Crete Island, Greece

Abstract

The earthquake vulnerability and the seismic risk assessment for the urban center of Chania in the island of Crete is approached through the development of a GISbased application that takes into consideration the structural and geological domain of the region. Considering a localized model, the various structural and geomorphologic attributes of the region were assigned specific weights of significance that allowed the creation of a modular application that was tested for the city of Chania, and it was verified based on the recent seismic activity of the area. The proposed risk map and model can become a significant tool for confronting crises resulting from future earthquake incidences.

Seismic Risk Assessment in the Attica Basin

“…The selected methodology for this paper was the one used by Sarris et al (2010), as it covered most aspects and produced the most accurate result using the data available. It should be noted that this formula does not necessarily represent an algebraic multiplication, any more than an algebraic combination depending on the nature and the number of layers of information on the used parameters.…”

“…The main difference between this methodology and the aforementioned is that the latter is far more customizable and versatile, as the layers of input information can be adjusted to the user's requirements, data availability and desired outcome. Such methodologies have been applied in various cities around the world such as Barcelona (Lantada et al, 2003), Brussels (Petermans et al, 2006), Thessaloniki (Pitilakis et al, 2006), Grenoble (Gueguen et al, 2007), Chania (Sarris et al, 2010) and Tabriz (Karimzadeh et al, 2014). Justification for this selection will be provided in the Materials and Methods chapter.…”

Seismic Vulnerability Assessment of Site-Vicinity Infrastructure for Supporting the Accident Management of a Nuclear Power Plant

“…The importance of the assessment of postevent situation has been recognized by competent authorities in Hungary [4][5][6] and worldwide (see, e.g., [2,[7][8][9][10][11]). …”

“…Typological analyses and expert judgement have been combined in [8]. A GIS based application is used in [9]. A Modified Mercalli intensity-based damage matrices were used to estimate damage to structural and nonstructural components of buildings [10].…”

Urban seismic risk assessment: statistical repair cost data and probable structural losses based on damage scenario—correlation analysis

“…A fourth parameter may then be added through which the seismic risk can be related to a social or economic loss; several studies have been developed internationally aiming at the urban seismic risk assessment (Costa et al 2010;Crowley et al , 2010aErdik et al 2003Erdik et al , 2006Lantada et al 2009;Marulanda et al 2013;RADIUS 1999;RISK-UE 2001-2004Rivas-Medina et al 2013;Salgado-Gálvez et al 2015;Silva et al 2015;SYNER-G 2009SYNER-G -2011Vicente et al 2010;Carreño 2012;Crowley et al 2010b). The seismic vulnerability and risk assessment of distinguished building classes, representative of the Southern Europe building stock and the development of damage scenarios for estimating structural losses due to a probable future earthquake concentrate during the past decades intense research interest [Baltzopoulou et al 2012;Karabinis 2011, 2013;Kappos et al 2007; Karabinis and Baltzopoulou 2006 Sarris et al 2009] aiming at the rational management and mitigation of seismic risk. As mentioned, components of seismic risk assessment are (1) the seismic hazard; (2) the ''exposure'' that is under the seismic risk, such as the density of population, the structural inventory (number and types of buildings); and (3) the seismic vulnerability analysis of existing buildings.…”