Urban earthquake hazard and damage assessment

Urban earthquake hazard and damage assessment

ARTICLE IN PRESS Soil Dynamics and Earthquake Engineering 28 (2008) 763 Contents lists available at ScienceDirect Soil Dynamics and Earthquake Engin...

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ARTICLE IN PRESS Soil Dynamics and Earthquake Engineering 28 (2008) 763

Contents lists available at ScienceDirect

Soil Dynamics and Earthquake Engineering journal homepage: www.elsevier.com/locate/soildyn

Guest Editorial

Urban earthquake hazard and damage assessment

The high and irreversible rate of urbanization in regions marked with high earthquake hazard levels necessitates a broader perspective for the assessment of urban earthquake risk and associated loss. In this assessment, the professional is faced with a variety of scientific and practical problems associated with the identification of primary and sequential earthquake hazards and of a variety of physical elements at risk. Significant efforts have been dedicated to various aspects of these problems in the last 20 years. Key areas addressed as part of these efforts include: (1) Development of advanced hazard models incorporating tectonic, seismological, geological and historical information for a rational assessment of input ground motion at different locations. (2) Development of appropriate geotechnical models for the estimation of sequential effects such as liquefaction, landslides, slope instability, ground motion aggravation due to topographic and valley effects applicable in urban-scale analyses. (3) Incorporation of fault rupture directivity and other near-fault effects into earthquake risk analyses. (4) Development of probabilistic models for estimating seismic demand and ensuing damage in engineered structures. (5) Development of procedures for the assessment of earthquake loss and associated socioeconomic impact. In this special issue of Soil Dynamics and Earthquake Engineering, titled ‘‘Urban Earthquake Hazard and Damage Assessment’’, we bring together example studies from different

0267-7261/$ - see front matter & 2008 Elsevier Ltd. All rights reserved. doi:10.1016/j.soildyn.2008.05.002

cities all over the world: Barcelona, Cairo, Celano, Lisbon, Metro Manila, Shanghai, New York City and Thessaloniki. These are cities from four continents with distinct differences in the level and character of earthquake hazard and in type and quality of building stock, representative of sharp differences reflecting their socioeconomic conditions. From a scientific point of view, each case can be used for elucidating how existing approaches, used for the identification and assessment of urban earthquake risk, are adopted depending on the challenges posed by different physical conditions of the urban and seismic environment. We believe that the information and methods compiled in this special issue serve this purpose well and hope that the present effort will be useful to researchers, practitioners and students. Last but not least, we would like to thank all the authors who have contributed to this special issue, the editors of SDEE and the technical staff at Elsevier, for the kind assistance they provided to us throughout the course of this effort.

Guest Editors Eser Durukal, George Mylonakis E-mail addresses: [email protected] (E. Durukal), [email protected] (G. Mylonakis)