SEISMIC RISK ASSESSMENT IN THE ATTICA BASIN


Publiée : Ιουλ 27, 2016
G.P. Farangitakis
O.G. Brentas
E. Andreadakis
E. Lekkas
Résumé

This paper aims to determine the exposure-based earthquake risk posed in the Attica Basin, Greece using a GIS based methodology. The hazard level is based on grouped geological formations according to the New Ground Anti-Earthquake Regulation of Greece and the structural setting of the area. Vulnerability is calculated using two different methodologies. The first one uses a deterministic approach by attributing population values to each building block divided by the of each municipality and the second one uses a probabilistic approach by using centroids based on a building block level and then creating their kernel density. Both of these approaches are combined with land use maps to create the final vulnerability layers. Risk is calculated in two ways, using the product and a weighted overlay of the hazard and vulnerability layers. In the Risk maps, proof of concept comes from overlaying the damages from the earthquakes of 1981 and 1999 that affected Attica Basin. Moreover, both the maps show high Risk probability in the area of the east part of the Attica Basin but without significant damages from past earthquakes. This suggests that the Kifisos Fault Zone might act as a seismic barrier depending of the location of the epicentre.

Article Details
  • Rubrique
  • Seismology
Téléchargements
Les données relatives au téléchargement ne sont pas encore disponibles.
Références
Alexander, D., 1993. Natural Disasters. UCL Press, London, 631, A73 pp.
Algermissen, S.T., Perkins, D., Isherwood, W., Gordon, D., Rengor, G. and Howard, C., 1975.
Seismic risk evaluation of the Balkan Regions, Survey of the Seismicity of the Balkan Region,
UNDP/UNESCO Report, USGS, Denver.
FEMA, 2004. Using HAZUS-MH for risk assessment, FEMA 433, Washington D.C.
Gueguen, P., Mitchel, C.L. and LeCorre, L., 2007. A simplified approach for vulnerability
assessment in moderate- to-low seismic hazard regions: application to Grenoble (France),
Bull. Earthq. Eng., 5, 467-490.
Jenks, G.F., 1967. The Data Model Concept in Statistical Mapping, International Yearbook of
Cartography, 7, 186-190.
Karimzadeh, S., Miyajima, M., Hassanzadeh, R., Amiraslanzadeh, R. and Kamel, B., 2014. A GISbased
seismic hazard, building vulnerability and human loss assessment for the earthquake
scenario in Tabriz, Soil Dynamics and Earthquake Engineering, 66, 263-280.
Lantada, N., Pujades, L.G. and Barbat, A., 2003. Vulnerability and seismic damage scenarios for
Barcelona (Spain) by using GIS, Geophys Res Abstr., 5, 09103.
Molina, S. and Lindholm, C.D., 2005. A logic tree extension of the capacity spectrum method developed
to estimate seismic risk in Oslo, Norway, Journal of Earthquake Engineering, 9(6), 877-897.
Molina, S. and Lindholm, C.D., 2006. A capacity spectrum method based tool developed to properly
include the uncertainties in the seismic risk assessment, under a logic tree scheme, ECI.
Geohazards-Technical, Economical and Social Risk Evaluationl, 18-21 June 2006,
Littlehommer, Norway.
Papanikolaou, D.J. and Marinos, P., 2001. Geological - Geotechnical study of Athens, EPPO
Research Programme.
Papanikolaou, I.D., 2011. Uncertainty in intensity assignment and attenuation relationships: How
seismic hazard maps can benefit from the implementation of the Environmental Seismic
Intensity scale (ESI 2007), Quaternary International, 242, 42-51.
Petermans, T., Delveeschouwer, X., Pouriel, F. and Rosset, P., 2006. Mapping the local seismic hazard
in the urban area of Brussels, Belgium, Proceedings of the 10th IAEG congress, Nottingham.
Pitilakis, K., Alexoudi, M., Argyroudis, S. and Anastasiadis, A., 2006. Seismic risk scenarios for an
efficient seismic risk management: the case of Thessaloniki (Greece). In: Wasti, S.T. and
Ozcebe, G., eds., Advances in earthquake engineering for urban risk reduction, Springer,
New York, 229-244.
Richter, C.F., 1959. Mapping Earthquake Risk Areas, Caltech.
Sarris, A., Loupasakis, C., Soupios, P., Trigkas, V. and Vallianatos, F., 2010. Earthquake
vulnerability and seismic risk assessment for urban areas in high seismic regions: an
application to Chania city, Crete Island, Greece, Nat. Hazards, 54,395-412.
Toma-Danila, D., Zulfikar, C., Manea, E.F. and Cioflan, C.O., 2015. Improved seismic risk
estimation for Bucharest, based on multiple hazard scenarios and analytical methods, Soil
Dynamics and Earthquake Engineering, 73, 1-16.
Articles les plus lus par le même auteur ou la même autrice