FEMA Flood Map Service Center : Hazus
FEMA’s Methodology for Estimating Potential Losses from Disasters
Hazus is a nationally applicable standardized methodology that contains models for estimating potential losses from earthquakes, floods, and hurricanes. Hazus uses Geographic Information Systems (GIS) technology to estimate physical, economic, and social impacts of disasters. It graphically illustrates the limits of identified high-risk locations due to earthquake, hurricane and floods. Users can then visualize the spatial relationships between populations and other more permanently fixed geographic assets or resources for the specific hazard being modeled, a crucial function in the pre-disaster planning process.
For more information about the Hazus program, please visit the Hazus home page. From there, you can learn how to:
- Stay connected with the Hazus Community by joining your local Hazus User Group
- Sign up for Hazus Training from FEMA's Emergency Management Institute
- Find technical support at the Hazus Help Desk
As part of an effort to continue modernizing Hazus, we are excited to announce the release of Version 3.0. This release contains a number of underlying software architectural changes, including:
- Migration of the current database structure away from the Personal Geodatabase (pGDB) format to SQL Server Spatial format
- Migration of all VB6 code in the Flood model to a combination of C# and .NET
- Support at the state level for both homogeneous and dasymetric state data, with dasymetric data now serving as the default for analysis
- Alignment with the Benefit Cost Analysis (BCA) tool (pushed from Task 2)
- SQL Server-compatible version of CDMS
- Repair of four major defects in block-level aggregation in the Flood and Hurricane models
Since this release is a major version update for the Hazus software, users of any older Hazus versions will need to uninstall Hazus on their computers prior to installation. For more information, please refer to the Download Tutorial and Quick Reference Guide and the Getting Started Guide available on the FEMA Document Library. Note: Although the container may say 2.1 manuals, these guides are relative and can be used with more recent versions of Hazus.
Users wishing to preserve their study regions and transfer them to Hazus 3.0 may do so, but only if they have been operating on the most recent version of Hazus 2.2 (SP01). The steps to extract and upload study regions are outlined in the Getting Started Guide. Please note this option of transferring study regions is not available for versions prior to 2.2 (SP01).
For assistance with technical concerns, please contact the Hazus Help Desk at email@example.com. Users can access further details regarding this release through the Hazus User Release Notes on the FEMA Document Library. There is also an updated Hazus Modernization Factsheet which highlights some of the key changes made to the Hazus-MH software in previous releases. A dedicated Dasymetric Data FAQ and Flyer have also been created to highlight some of the differences between the dasymetric and homogeneous datasets.
Downloading the Hazus Application
Domestic and international users may select the "Hazus-MH Application" link below to download the software. As an alternative, you may opt to manage the download and select the items you wish to obtain. Internet Explorer and Mozilla Firefox web browsers are recommended to perform the download. Google Chrome is not supported. Hazus-MH 3.0 must be installed with ArcGIS 10.2.2.
If you require assistance downloading the software, please email the FEMA Map Information eXchange (FMIX) at FEMAMapSpecialist@riskmapcds.com.
- Learn more about Hazus software through a comprehensive list of Hazus Frequently Asked Questions (FAQ).
- For detailed instructions on how to download and install Hazus, please see the following training tutorial.
- Learn more about what's happening in the world of Hazus by checking out updated Hazus Flyers and Handouts
- Check out the release notes of previous Hazus software releases being viewing the User Release Notes page in the FEMA Document Library