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Population exposure index – an element of seismic risk assessmentNormal access

Authors: D. Solakov, M. Metodiev, S. Simeonova and P. Trifonova
Event name: 10th Congress of the Balkan Geophysical Society
Session: 2.5 Seismic Hazard and Risk
Publication date: 18 September 2019
DOI: 10.3997/2214-4609.201902659
Organisations: BGS, EAGE
Language: English
Info: Extended abstract, PDF ( 2.8Mb )
Price: € 20

This paper presents assessment of one of the main elements of the seismic risk – human exposure at the territory of Bulgaria. Seismic hazard in terms of Peak Ground Acceleration map is modelled using GIS and overlaid with a model of population distribution in order to extract a population exposure index (PEI). We use as indicator the population density to allow comparison between less populated and more populated regions. Analysis is performed on a gridded network with a single element of 1x1 kilometer. Information about the population cover the period 2011-2018 using data from the last census performed in 2011 and the updated information for the towns provided by the National Statistical Institute for 2018. As a result, a classification of region is provided based on the results obtained for PEI.

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