Wildfire Sample
This page provides a complete sample response for a wildfire hazard from the Active Hazards API endpoint. Wildfire hazards are detected from satellite observations using sensors such as VIIRS (Visible Infrared Imaging Radiometer Suite) and MODIS (Moderate Resolution Imaging Spectroradiometer). These instruments detect thermal anomalies that indicate active fire activity, allowing PDC to track and report wildfire events globally.
Wildfire-Specific Properties
Incident Data
The incident.properties object for a wildfire provides key attributes about the detected fire event:
hazard_id- Internal identifier for the wildfire hazard (e.g.,"395971")frp_max- Fire Radiative Power maximum value in megawatts (e.g.,1.8). FRP is a measure of the rate of radiant heat output from a fire, derived from satellite observations. Higher values indicate more intense fire activity.duration- Duration of the fire event in hours (e.g.,0for a newly detected fire)
Note that wildfire incidents use sourceId: -1 and sourceRecordId: "N/A", indicating the hazard is generated from PDC's own satellite-based detection pipeline rather than an external reporting agency.
Features
The features property is null for this wildfire sample. When available, wildfire features may include fire perimeter polygons such as NIFC (National Interagency Fire Center) perimeters in the United States. For wildfires detected primarily via satellite hotspot data, detailed perimeter features may not be available, particularly for fires outside of the US or those in early stages of detection.
Exposure Areas
Wildfires use multiple exposure levels based on proximity to the detected fire activity:
Level 1: Outer buffer zone - represents the widest area of potential impact surrounding the fire
Level 2: Moderate proximity zone - represents areas closer to the active fire with increased risk
Level 3: Active fire perimeter area - represents the immediate vicinity of detected fire hotspots
This wildfire sample contains 9 exposure area features distributed across all three levels: 3 features at level 3, 3 features at level 2, and 3 features at level 1. Multiple polygons per level indicate distinct fire clusters or non-contiguous burn areas within the same wildfire event.
Sample Response
Note: In this sample, coordinate arrays in exposureAreas have been replaced with [...] for brevity. In actual API responses, these properties contain complete GeoJSON coordinate arrays. Additionally, note that alertGeometry, features, relatedHazards, and source are all null in this sample, and exposureAssessment is an empty object {}. The createdAt value of 1771242221584 is in milliseconds (rather than seconds as seen in some other hazard types) and should be consumed as-is.
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