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Titel |
Scenario-based earthquake hazard and risk assessment for Baku (Azerbaijan) |
VerfasserIn |
G. Babayev, A. Ismail-Zadeh, J.-L. Mouël |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1561-8633
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Digitales Dokument |
URL |
Erschienen |
In: Natural Hazards and Earth System Science ; 10, no. 12 ; Nr. 10, no. 12 (2010-12-22), S.2697-2712 |
Datensatznummer |
250008547
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Publikation (Nr.) |
copernicus.org/nhess-10-2697-2010.pdf |
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Zusammenfassung |
A rapid growth of population, intensive civil and industrial building, land
and water instabilities (e.g. landslides, significant underground water
level fluctuations), and the lack of public awareness regarding seismic
hazard contribute to the increase of vulnerability of Baku (the capital city
of the Republic of Azerbaijan) to earthquakes. In this study, we assess an
earthquake risk in the city determined as a convolution of seismic hazard
(in terms of the surface peak ground acceleration, PGA), vulnerability (due
to building construction fragility, population features, the gross domestic
product per capita, and landslide's occurrence), and exposure of
infrastructure and critical facilities. The earthquake risk assessment
provides useful information to identify the factors influencing the risk. A
deterministic seismic hazard for Baku is analysed for four earthquake
scenarios: near, far, local, and extreme events. The seismic hazard models
demonstrate the level of ground shaking in the city: PGA high values are
predicted in the southern coastal and north-eastern parts of the city and in
some parts of the downtown. The PGA attains its maximal values for the local
and extreme earthquake scenarios. We show that the quality of buildings and
the probability of their damage, the distribution of urban population,
exposure, and the pattern of peak ground acceleration contribute to the
seismic risk, meanwhile the vulnerability factors play a more prominent role
for all earthquake scenarios. Our results can allow elaborating strategic
countermeasure plans for the earthquake risk mitigation in the Baku city. |
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