A Next-Generation Open-Source Tool for Earthquake Loss Estimation

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Title: A Next-Generation Open-Source Tool for Earthquake Loss Estimation
Authors: Molina-Palacios, Sergio | Lang, Dominik H. | Meslem, Abdelghani | Lindholm, Conrad D. | Agea-Medina, Noelia
Research Group/s: Grupo de Ingeniería y Riesgo Sísmico (GIRS)
Center, Department or Service: Universidad de Alicante. Departamento de Ciencias de la Tierra y del Medio Ambiente
Keywords: Analytical methods | Damage and loss | Earthquake loss estimation | SELENA
Knowledge Area: Física de la Tierra
Issue Date: 2017
Publisher: WIT Press
Citation: International Journal of Safety and Security Engineering. 2017, 7(4): 585-596. doi:10.2495/SAFE-V7-N4-585-596
Abstract: Earthquake loss estimation (ELE), generally also referred to as earthquake risk assessment, is a comparably young research discipline which, at first, relied on empirical observations based on a macroseismic intensity scale. Later, with the advent of methodologies and procedures that are based on theoretical simulation in estimating physical damage under earthquake loading, the analytical approach for ELE was formulated. The open-source software SELENA, which is a joint development of NORSAR (Norway) and the University of Alicante (Spain), is undergoing a constant development. One of the more recent features being included is the possibility to address topographic amplification of seismic ground motion. Additionally, SELENA has been adapted by including various methods for the analytical computation of structural damage and loss. SELENA now offers complete flexibility in the use of different types of fragility curves based on various ground motion intensity parameters (e.g. PGA, Sa, Sd), which has been suggested by many recently released guidelines (e.g. FEMA P-58, GEM-ASV, SYNER-G, HAZUS- MH). Besides, under the framework of the ongoing Horizon 2020 LIQUEFACT project, SELENA is extended in order to allow the consideration of liquefaction-induced ground displacements and respective structural damage. In general, software tools for ELE are particularly useful in two different settings, i.e., for disaster management and (re)insurance purposes. Both sectors pose very different demands on ELE studies: while the (re)insurance sector is foremost interested in the direct and indirect economic losses caused by an earthquake to its insured physical assets, those institutions (often governmental and non- governmental organizations) in charge of disaster emergency management and response are more interested in reliable estimates on human losses and the potential short- and long-term social consequences. Being aware about these peculiar differences between software tools for disaster management and insurance applications, NORSAR/UA thereby offers two in its core similar software tools, i.e., the open-source software SELENA and the proprietary software PML (Probable Maximum Loss) which is actively used by the insurance association in Chile (South America) since 2011.
Sponsor: The present research has been benefited from funding of NORSAR and the Univ. Alicante through research contracts (NORSAR1-14A, NORSAR1-08I), the funding of the Ministerio de Economía, Industria y Competitividad (CGL2016-77688-R) and the Generalitat Valenciana (BEST/2012/173 and AICO/2016/098). The development and implementation of the liquefaction risk assessment methodology is done under the LIQUEFACT project funded by the European Union’s Horizon 2020 research and innovation programme under grant agreement (No. 700748).
URI: http://hdl.handle.net/10045/71253
ISSN: 2041-9031 (Print) | 2041-904X (Online)
DOI: 10.2495/SAFE-V7-N4-585-596
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2017 WIT Press
Peer Review: si
Publisher version: http://dx.doi.org/10.2495/SAFE-V7-N4-585-596
Appears in Collections:Research funded by the EU
INV - GIRS - Artículos de Revistas

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