Fragility of Indonesian houses: scenario damage analysis of the 2006 Yogyakarta and 2009 Padang earthquakes  

Authors / CoAuthors

Weber, R. | Cummins, P. | Edwards, M.

Abstract

Indonesia is located in one of the most seismically active regions in the world and often experiences damaging earthquakes. In the past the housing sector has sustained more damage and losses than other sectors due to earthquakes. This is often attributed to the fact that the most common houses in Indonesia are non-engineered, built with poor quality workmanship, poor quality materials and without resilient seismic design features. However little effort has been made to quantify how fragile these houses are, or how the fragility of these houses may vary according to location or wealth. It is not possible to derive empirical fragility functions for Indonesia due to insufficient damage data. The aim of this study is to determine whether existing earthquake fragility functions can be used for common houses in Indonesia. Scenario damage analyses were undertaken several times using different sets of fragility functions for the 2006 Yogyakarta and 2009 Padang events. The simulated damage results were then compared to the damage observed post event to determine whether an accurate damage prediction could be achieved. It was found that the common houses in Yogyakarta and Central Java vary according to age, location and wealth and can be reasonably well represented by existing fragility functions. However, the houses in Padang and surrounding West Sumatra did not vary in a predictable manner and are more fragile than anticipated. Therefore, the fragility of the most common houses in Indonesia is not uniform across the country. This has important implications for seismic damage and risk assessment undertaken in Indonesia. <b>Citation:</b> Weber, R., Cummins, P. & Edwards, M. Fragility of Indonesian houses: scenario damage analysis of the 2006 Yogyakarta and 2009 Padang earthquakes. <i>Bull Earthquake Eng</i> (2024). https://doi.org/10.1007/s10518-024-01930-z

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document

eCat Id

148616

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Keywords

theme.ANZRC Fields of Research.rdf

• Earthquake EngineeringEARTH SCIENCES

( {1} )

• building fragility

( {1} )

• exposure

( {1} )

• Indonesia

( {1} )

• seismic risk

( {1} )

• damage assessment

( {1} )

• Pacific Nations

( {1} )

• Hazard Response

( {1} )

• Natural Hazards

( {1} )

• earthquakes

( {1} )

• Published_External

Publication Date

2024-06-24T05:23:35

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Australian Government Security Classification System    

Classification - unclassified

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Creative Commons Attribution 4.0 International Licence    

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accepted

Purpose

To describe results of research on fragility of Indonesian houses to earthquake shaking.

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asNeeded

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geoscientificInformation

Series Information

Journal of Earthquake Engineering

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Developed by the paper authors as described in the 'Author Contributions' part of the paper.

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Extents

[-10.923, 5.9101, 95.013, 140.98]

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Spatial Resolution

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