Building Exposure Model for Java, Indonesia at Village Scale

Java, Indonesia, has a 2020 exposure model covering approximately 40 million buildings, with about 27 million identified as vulnerable masonry residential houses. The model was developed by researchers from Geoscience Australia and others, integrating open-source and government datasets with Census data. It was published in 2026 to address a gap in understanding building type distribution for seismic risk assessment.

Use Cases

• Assessing regional seismic risk based on building type and use distribution.
• Informing disaster management policies and resource allocation at the village (desa) scale.
• Calibrating other risk models by integrating the building exposure and uncertainty data.
• Prioritizing retrofitting or reinforcement programs for vulnerable masonry residential houses.

Strengths

• Covers approximately 40 million buildings across the entire island of Java.
• Identifies a specific subset of about 27 million vulnerable masonry residential houses.
• Provides a desa (village) scale model, which is a finer resolution for local policy.

Limitations

• Relies on secondary data sources, introducing an unknown degree of uncertainty to the model.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for specific analytical tasks.

Provenance

Source

Geoscience Australia Data

Collection Method

Integrated open-source and Indonesia Government datasets with current and historical Census data.

Time Range

2020

Freshness

Last updated 2026-04-20 02:19:37.040888; freshness should be verified.

Geography

Java, Indonesia