Back to Zonary.ioLast Updated: August 16, 2025
Data Disclaimer
Data on this site is sourced from FEMA and other official open-data providers. Every effort has been made to ensure the information is accurate and up to date. However, occasional omissions, delays, or errors may occur during data collection and processing. This information is provided for general informational purposes only and should not be relied upon as the sole basis for insurance, legal, or financial decisions. Users are responsible for verifying results with official sources before making decisions.
The hazard data and mapping information provided by Zonary.io is compiled from various official sources including:
- Federal Emergency Management Agency (FEMA) flood hazard data
- National Oceanic and Atmospheric Administration (NOAA) data
- United States Geological Survey (USGS) earthquake data
- State and local government hazard databases
- OpenStreetMap and other geographic data providers
While we strive to provide accurate and current information, the dynamic nature of hazard data means that conditions can change rapidly. Natural disasters, infrastructure changes, and new scientific findings may affect the accuracy of our data.
Limitations of Use
Not Professional Advice
The information provided on Zonary.io is for informational purposes only and does not constitute professional advice of any kind, including but not limited to:
- Insurance recommendations or coverage advice
- Legal opinions or interpretations
- Financial planning or investment advice
- Real estate valuation or appraisal services
- Emergency response or safety planning
Decision-Making Responsibility
Users are solely responsible for any decisions made based on information obtained from Zonary.io. We strongly recommend consulting with qualified professionals before making important decisions related to:
- Purchase or sale of property
- Insurance coverage decisions
- Emergency preparedness planning
- Business continuity planning
- Legal compliance matters
Data Verification
Important: Always verify information with official sources before making critical decisions. Contact local authorities, licensed professionals, or official agencies for the most current and authoritative information.
Data Sources & Attributions
Primary Data Providers
FEMA (Federal Emergency Management Agency)Flood hazard data, flood insurance rate maps, and flood risk information.
Source: fema.gov NOAA (National Oceanic and Atmospheric Administration)Storm surge, hurricane, and coastal hazard data.
Source: noaa.gov USGS (United States Geological Survey)Earthquake hazard data and seismic risk information.
Source: usgs.gov CARTOMap tiles and basemap styling.
Source: carto.com Data Processing & Updates
Hazard data is processed and aggregated from multiple sources to provide comprehensive risk assessments. Our system includes:
- Automated data updates from official sources
- Quality control and validation processes
- Real-time data synchronization where available
- Historical data archiving and trend analysis
Technical Limitations
Data Accuracy Considerations
- Resolution Limits: Some hazard data may be available at different geographic resolutions
- Update Frequency: Data from various sources is updated at different intervals
- Geographic Coverage: Not all areas have comprehensive hazard data available
- Modeling Uncertainty: Hazard models involve assumptions and uncertainties
- Local Conditions: Site-specific conditions may vary from generalized data
System Limitations
- Internet Connectivity: Service requires stable internet connection
- Browser Compatibility: Optimized for modern web browsers
- Data Volume: Large datasets may affect loading times
- Geographic Boundaries: Some features may not work across all regions
Contact Information
If you have questions about our data sources, limitations, or need assistance, please contact us: