Product catalogue
Development and Verification of the Java Exposure Model for use in PSRA
The island of Java in Indonesia is the most populated island in the world, with over 150 million
residents. Java is located in a complex tectonic setting and frequently experiences damaging earthquakes. In Java, many buildings are non-engineered and built with limited or no seismic design provisions. This has led to poor quality construction and materials being used, particularly in residential houses, with the housing sector often sustaining the highest economic losses in Indonesia. Despite this high hazard, high exposure, and high vulnerability there is limited seismic risk information available for Java. This is in part due to poor data availability to develop exposure and vulnerability models to verify them. This study has focussed on developing a village scale exposure model for Java from multiple sources and understanding the uncertainty in this process. This new exposure model harmonises multiple eras of census data, government reports, the
Global Human Settlement building height model, OpenStreetMap, post-disaster surveys and other published literature to develop an exposure model that includes residential, commercial, and industrial buildings, and schools. The model shows spatial variation in the seismic resilience of buildings based on the relative wealth, region (rural, urban or city) and population density. Model performance was then assessed through scenario damage analysis of several recent earthquakes in Java.
A reliable exposure model is a critical input to a Probabilistic Seismic Risk Assessment (PSRA) that would help Indonesia mitigate the threat earthquakes pose to communities and infrastructure. However, the scenario damage analyses highlighted two key issues that must be addressed before conducting a PSRA. Firstly, it identified that the ground motion models used in recent Indonesia PSHAs do not accurately represent the ground motion, particularly in areas with active volcanism. Secondly it identified that the performance of the exposure model varies across Java, but the reason for this variation is difficult to elucidate without a better understanding of the uncertainty in the exposure model. To assess this uncertainty, a suite of alternate mapping schema was developed for the exposure model. The result of this study is a detailed fine scale exposure model with uncertainty that can be used as an input for PSRA to support decision making in Java, Indonesia.
Presented at the 2024 18th World Conference on Earthquake Engineering, Milan, Italy
Simple
Identification info
- Date (Creation)
- 2024-01-30
- Date (Publication)
- 2025-02-18T05:30:59
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/149199
Identifier
- Codespace
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Digital Object Identifier
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Weber, R.
External Contact Author Cummins, P.
Place and Communities Internal Contact Author Edwards, M.
Place and Communities Internal Contact Author Silva, V.
External Contact
- Name
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18th World Conference on Earthquake Engineering (WCEE 2024) 30 June - 5 July 2024 Milan, Italy
- Purpose
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For presentation at international conference 18th World Conference on Earthquake Engineering (WCEE 2024) Milan, Italy
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Resource provider Place and Communities Division
External Contact Point of contact Cummins, P.
Place and Communities Internal Contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
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Product data repository: Various Formats
- Website
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- theme.ANZRC Fields of Research.rdf
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Natural Hazards
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- Theme
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building exposure
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- Theme
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earthquake
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- Keywords
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
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CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
- Other constraints
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(c) Commonwealth of Australia (Geoscience Australia) 2024
Resource constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice facsimile
- OnLine resource
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Link to Conference Page
Link to Conference Page
- Distribution format
-
- OnLine resource
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Link to Paper
Link to Paper
- Distribution format
-
Resource lineage
- Statement
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Original manuscript
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/42ea6978-c048-4e08-9c7b-461e7d8bfd59
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Owner Cummins, P
Internal Contact Point of contact Cummins, P.
Place and Communities Internal Contact
Type of resource
- Resource scope
- Document
- Name
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Journal Articles / Conference Papers
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/149199
- Date info (Creation)
- 2019-04-08T01:55:29
- Date info (Revision)
- 2019-04-08T01:55:29
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551