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Information Journal Paper

Title

Earthquake Damages Assessment in the Northern Tabriz (Regions 1, 5 and 10)

Pages

  1-22

Keywords

Geographic Information System (GIS)Q4
Analytic Hierarchy Process (AHP)Q4

Abstract

 In the present study, the Seismic vulnerability of the northern Tabriz (regions 1, 5, and 10) has been assessed spatially. The evaluation process goes through five distinct phases: spatial evaluation of criteria affecting seismic vulnerability, fuzzification, determination of criteria weight using AHP, integration of all maps for evaluation criteria, and finally, damage coefficient calculation. The results of the AHP model indicate that distance to the fault residential density (with a weight of 0.229) and population density (with a weight of 0.162) are the most important criteria affecting the Seismic vulnerability of the Northern regions of Tabriz. Seismic vulnerability zoning shows that almost all the northern regions of the city have high to very high vulnerability to earthquake hazards. More than 16.6% and 5.6% of the study regions are located in the high and very high Seismic vulnerability class, respectively. These spaces mainly include residential land uses in the western neighborhoods of Region 1 and the central neighborhoods of Region 10. Based on the Seismic vulnerability coefficient for an earthquake with a magnitude of 10, the amount of destruction in these regions will be between 65 and 100 percent. Proximity to the great fault of Tabriz, high population and residential density, lack of urban open spaces, a significant part of fine-grained buildings, worn-out urban texture, and marginalization are among the reasons for the high Seismic vulnerability of the western parts of Region 1 and the central parts of region 10.

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