Preprints
https://doi.org/10.5194/nhess-2022-73
https://doi.org/10.5194/nhess-2022-73
 
09 Mar 2022
09 Mar 2022
Status: this preprint is currently under review for the journal NHESS.

Seismic risk scenarios for the residential buildings in the Sabana Centro province in Colombia

Dirsa Feliciano1,2, Orlando Arroyo1,2, Tamara Cabrera3,4, Diana Contreras5,6, Jairo Andrés Valcárcel Torres7, and Juan Camilo Gómez Zapata8,9 Dirsa Feliciano et al.
  • 1Faculty of Engineering, Universidad de La Sabana, Chía, 250001, Colombia
  • 2Research Center on Disasters and Climate Change (CIDEC), Chía, 250001, Colombia
  • 3Research Center for Integrated Natural Disaster Management (CIDIGEN), ANID/FONDAP/15110017, 4860, Santiago, Chile
  • 4Department of Structural and Geotechnical Engineering, Pontificia Universidad Católica de Chile, 4860, Santiago, Chile
  • 5School of Earth and Environmental Sciences, College of Physical Sciences and Engineering, Cardiff University, Park Place, Cardiff CF10 3AT, UK
  • 6School of Engineering, Faculty of science agriculture and engineering, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
  • 7Faculty of Engineering, Universidad de La Salle, Bogotá, 11121, Colombia
  • 8Seismic Hazard and Risk Dynamics, GFZ German Research Centre for Geosciences, Potsdam, 14473, Germany
  • 9Institute for Geosciences, University of Potsdam, Potsdam, 14469, Germany

Abstract. Colombia is in one of the most active seismic zones on Earth, where the Nazca, Caribbean, and South American plates converge. Approximately 83 % of the national population lives in intermediate to high seismic hazard zones, and a significant part of the country’s building inventory dates from before the nation’s first seismic design code (1984). At present, seismic risk scenarios are available for the major cities of the country, but there is still a need to undertake such studies in other regions. This paper presents a seismic risk scenario for the “Sabana Centro” province, an intermediate hazard zone located close to the country’s capital. An exposure model was created combining information from the Global Earthquake Model (GEM) Foundation, surveys, and the national census. Fragility and vulnerability curves were assigned to the building types of the region. A hazard model was developed for the region and eighteen earthquake scenarios with a return period of 475 years were simulated using the OpenQuake (OQ) hazard and risk assessment tool to estimate damage and economic losses. In addition, a social vulnerability index (SVI) based on demographic information was used to assess the direct economic loss in terms of replacement costs. The results show that 18 % of all buildings considered in the region would experience collapse, and 7 % would suffer severe damage. Losses account for 18 % of the total replacement cost of the buildings and represent 15 % of the annual Gross Domestic Product (GDP) of the region.

Dirsa Feliciano et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on nhess-2022-73', Pablo Heresi, 04 May 2022
    • AC1: 'Reply on RC1', Dirsa Feliciano, 25 Jul 2022
  • CC1: 'Comment on nhess-2022-73', Maria Camila Hoyos Ramirez, 23 May 2022
  • RC2: 'Comment on nhess-2022-73', Ana Acevedo, 24 May 2022
    • AC2: 'Reply on RC2', Dirsa Feliciano, 25 Jul 2022
  • RC3: 'Comment on nhess-2022-73', Maria Camila Hoyos Ramirez, 24 May 2022
    • AC3: 'Reply on RC3', Dirsa Feliciano, 25 Jul 2022

Dirsa Feliciano et al.

Data sets

RRVS Building survey for building exposure modelling in Chía (Colombia) V. 1.0 Arroyo, O., Feliciano, D., Gomez Zapata, J. C., Shinde, S., and Brinckmann, N. https://dataservices.gfz-potsdam.de/panmetaworks/review/53f33a3960011189ac4d99e5719752e0ab02e9723f4743597e544faea0ecc720/

Dirsa Feliciano et al.

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Short summary
This article presents the number of damaged buildings and calculates the costs for an earthquake in Sabana Centro, a region of eleven towns in Colombia.
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