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Estimation of the seismic risk of schools in developing countries is an important but challenging task. In this paper, we report an attempt to estimate the damage and losses of primary schools during the Mw7.9 Wenchuan earthquake that ruptured on 12 May 2008 using SELENA (SEismic Loss EstimatioN from a logic tree Approach). In this study, the seism...
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... considering of four different damage levels (slight, moderate, extensive and complete) and is partly shown in Fig. 3. It can be seen in Fig. 3 that the school buildings in Dujiangyan, Pengzhou, Shifang, Mianzhu, Wenchuan, Anxian, Beichuan and Qingchuan may have a higher probability to be completely damaged than those in the other seven counties. Fig. 4, for example, illustrates the estimated number of injured pupils in different damage states in each county. The value at the end of each bar is the total number of injured pupils in the county corresponding to that bar. The result obviously illustrates that there are relatively more injured pupils and higher possibilities of death in ...
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Citations
... SELENA is an open-source MATLAB based seismic risk estimation tool developed by NORSAR (Norwegian Seismic Array /International Center for Geohazards, Norway) and the University of Alicante (Spain) for systematic seismic risk assessment using the capacity spectrum method [11,12]. Yang et al. (2011) [13] used this technique to estimate seismic damage and human loss correlated to primary schools during the Mw 7.9 Wenchuan earthquake that occurred on 12 May 2008 at Sichuan Province, China. Lang et al. [14] carried out an analytical based damage and loss estimation for Dehradun city in Northern India, applying the SELENA based approach. ...
The city of Kolkata, the State Capital of West Bengal is jolted by earthquakes time and again from the tectonic regimes of the Central Himalaya, highly seismogenic Northeast India and the active tectonics of Bengal Basin which is a pericratonic tertiary basin on which the City is located. Earthquake disaster mitigation and management necessitates seismic hazard assessment for the generation of design response spectra at a site of interest with a zone factor for the computation of seismic coefficient to be adapted in building codes. The surface consistent probabilistic seismic hazard model of Kolkata for 475 years of return period have been used for the modeling of damage potential of buildings, human casualty and economic loss employing the widely used SEismic Loss EstimatioN applying a logic tree Approach (SELENA) in a relational analysis protocol considering eleven model building types. The demand spectrum curve of a spectral acceleration through a judicious interaction with the building capacity curve and fragility curve yields the damage state probability of the same in terms of slight, moderate, extensive and complete. Human casualty levels are also computed applying SELENA for three different times of the day viz. Night, Day and Commuting time. The economic loss to the tune of ~231 billion of Indian Rupees due to building damage only have been estimated within 300 socioeconomic clusters in the City. It is expected that this model will go a long way in safe urbanization process with well-defined disaster mitigation and management guidelines for the city of Kolkata.
