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 Hazus-MH 3.1. This release is a full-versioned software release that implements 6 enhancements and addresses 21 defects. Some of the major changes include:
- Installation process was improved to separate Hazus-MH application download from SQL download, preventing SQL errors that users have encountered while installing previous Hazus versions
- Average Annualized Loss (AAL) analysis is now available for full suite of return periods for User Defined Facilities (UDF). After running General Building Stock (GBS) UDF analysis, users can now go to Analysis -> Average Annualized Loss and select option for UDF. A report is generated under Results -> Summary Reports -> Buildings tab
- SLOSH basins with updated vertical datum were obtained from the National Oceanic and Atmospheric Administration (NOAA) and incorporated with the Hazus Surge to reduce analysis failures. SLOSH basins also no longer fail for counties where the Federal Information Processing Standard (FIPS) code begins with "0"
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 3.1 must be installed with ArcGIS 10.2.2.
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.
NOTE: The instructions for uninstalling your old version of Hazus and installing Hazus-MH 3.1 have changed. Please read the Getting Started Guide in the HAZUS_APP folder from the MSC download for details. Users must check if their license information is visible by opening ArcGIS Administrator after uninstalling Hazus-MH 3.0 from their computer. A blank screen in ArcGIS Administrator denotes a corrupt license. In this situation, a user must go to Windows Control Panel -> Uninstall Programs and click on Uninstall/Change for ArcGIS, then select the 'Repair' radio button and follow the on-screen procedures.
Users wishing to preserve their study regions and transfer them to Hazus 3.1 may do so, but only if they have been operating on the most recent version of Hazus (3.0). They will be able to follow the steps outlined in the Getting Started Guide available with the download to extract their study regions in Hazus-MH 3.0 and then upload them into 3.1 once it is downloaded.
If you require assistance downloading the software, please email the FEMA Map Information eXchange (FMIX) at FEMAMapSpecialist@riskmapcds.com.