1) Hazard and Inventory Inputs
Earthquake intensity rasters, flood depth layers, and building inventory datasets are loaded together with hazard-appropriate impact models.
Disaster Risk Analysis Platform
Analyse hazard, fragility/vulnerability, and building inventory in one workflow
Perilx brings together earthquake fragility models, flood vulnerability functions, hazard intensity layers, and building inventory data for a consistent multi-hazard risk workflow. The platform helps analysts compare damage-state probabilities for earthquakes and impact/loss-oriented flood results through fast filtering, querying, and map-based reporting.
Perilx Multi-Hazard Analysis Flow
The platform provides a clear and repeatable pipeline from hazard-specific model selection to map-based multi-hazard decision support outputs.
2) Hazard-Specific Model Matching
Building taxonomy is mapped to earthquake fragility functions and flood vulnerability functions so each scenario uses the right impact concept.
3) Visualisation and Comparison
Results are reviewed with map-based damage classes for earthquakes, loss-oriented flood outputs, attribute filters, and interactive layer controls.
Technical Foundation: Earthquake Fragility + Flood Vulnerability
Perilx is aligned with a multi-hazard physical impact modelling approach in which earthquake analyses are expressed through fragility and flood analyses are expressed through vulnerability.
- Earthquake fragility represents the probability of reaching or exceeding defined damage states for a given seismic intensity measure.
- Flood vulnerability represents the probability or expected level of impact or loss for a given flood intensity measure such as water depth.
- Hazard layers can be processed as raster inputs in EPSG:4326 (WGS84), provided that intensity units and model assumptions are aligned.
- Computed outputs are served together with building attributes on interactive layers so users can compare earthquake damage states and flood impact patterns in one interface.
Map and Multi-Hazard Decision Support Tools
The interface unifies search, layer management, drawing, and filtering for analysts and decision makers working across earthquake and flood scenarios.
Key interface capabilities
- UAVT-based location search (province, district, village, neighborhood).
- District-level layer selection and building inventory filtering.
- Address search and go-to-coordinate workflows.
- Drawing tools with GeoJSON export.
- Measurement tools, basemap switching, and thematic layer controls.
Hazard-Specific Model Notes
Pilot studies reduce methodological uncertainty by selecting impact models that match both the local building stock and the hazard-specific modelling concept.
- For earthquakes, outputs can be expressed as damage-state probabilities such as slight, moderate, extensive, and complete damage.
- For floods, outputs commonly reflect vulnerability through impact or loss metrics, often driven by variables such as flood depth and building use.
- Building attributes such as construction type, construction year, storey count, and use type support hazard-specific model assignment.
- Outputs should be interpreted as decision-support insights and refined over time with improved local inventory, calibration, and expert review.
Product Walkthrough Media
Watch Perilx workflow demos for multi-hazard analysis, map interaction, and filtering.
Perilx Overview Flow
Analysis and Filtering Demo
Read Earthquake and Flood Risk Spatially with Perilx
Combine earthquake fragility, flood vulnerability, and building inventory layers to evaluate hazard-specific risk outcomes directly on the map.
Launch Perilx